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  Collections ontology  ORE ontology
–unordered and ordered collections are represented by two separate class constructs, Bag and List respectively+unordered and ordered collections are represented by the same class construct, Aggregation
+item property names are easy to understand (e.g., index, itemContent, nextItem)–item property names are cryptic (e.g., proxyFor, proxyIn, next)
–order is determined by an item property pointing to the next item, i.e.,  nextItem–order is determined by an item property pointing to the next item, i.e., next
–URI for the item is not associated with the collection class (e.g., List, Bag).+URI for the item is associated with the collection class (i.e., Aggregation) via of the aggregates property.
+URI for the item is associated with the item class (i.e., Item) via the itemContent property.+URI for the item is associated with the item class (i.e., Proxy) via the proxyFor property.

 

 

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Ordered Collection Examples

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Example 1-co:  A Virtual Collection as an ordered collection of items using Collection Ontology's List with one item

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<http://localhost:3000/individual/vc155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#List>
<http://localhost:3000/individual/vc155> <http://purl.org/co#size> "1"^^xsd:nonNegativeInteger
<http://localhost:3000/individual/vc155> <http://purl.org/co#firstItem> <http://localhost:3000/individual/vci162>
<http://localhost:3000/individual/vc155> <http://purl.org/co#item> <http://localhost:3000/individual/vci162>
<http://localhost:3000/individual/vc155> <http://purl.org/co#lastItem> <http://localhost:3000/individual/vci162>

<http://localhost:3000/individual/vci162> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#ListItem>
<http://localhost:3000/individual/vci162> <http://purl.org/co#index> "1"^^xsd:positiveInteger
<http://localhost:3000/individual/vci162> <http://purl.org/co#itemContent> <http://da-rdf.library.cornell.edu/individual/b3652730>

 

 

 


Code Block
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titleTurtle using Collection ontology's List class
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix co:      <http://purl.org/co> .
 
<http://localhost:3000/individual/vc155> a co:List ;
  co:size       "1"^^xsd:nonNegativeInteger ;
  co:firstItem  <http://localhost:3000/individual/vci162> ;
  co:item       <http://localhost:3000/individual/vci162> ;
  co:lastItem   <http://localhost:3000/individual/vci162> .
 
<http://localhost:3000/individual/vci162> a co:ListItem
  co:index        "1"^^xsd:positiveInteger ;
  co:itemContent  <http://da-rdf.library.cornell.edu/individual/b3652730> .

 

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Example 1-ore:  A Virtual Collection as an ordered collection of items using ORE Ontology's Aggregation with one item
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<http://localhost:3000/individual/vc155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.openarchives.org/ore/terms/Aggregation>
<http://localhost:3000/individual/vc155> <http://www.openarchives.org/ore/terms/aggregates> <http://da-rdf.library.cornell.edu/individual/b3652730>
 
 
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 Code Block
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titleTurtle using ORE ontology's Aggregation class
@prefix ore:     <http://www.openarchives.org/ore/terms/> .
  
<http://localhost:3000/individual/vc155> a ore:Aggregation ;
  ore:aggregates <http://da-rdf.library.cornell.edu/individual/b3652730> .
 
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Example 2-co: A Virtual Collection as an ordered collection of items using Collection Ontology's List with multiple ordered items
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<http://localhost:3000/individual/vc155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#List>
<http://localhost:3000/individual/vc155> <http://purl.org/co#size> "4"^^xsd:nonNegativeInteger
<http://localhost:3000/individual/vc155> <http://purl.org/co#firstItem> <http://localhost:3000/individual/vci162>
<http://localhost:3000/individual/vc155> <http://purl.org/co#item> <http://localhost:3000/individual/vci162>
<http://localhost:3000/individual/vc155> <http://purl.org/co#item> <http://localhost:3000/individual/vci163>
<http://localhost:3000/individual/vc155> <http://purl.org/co#item> <http://localhost:3000/individual/vci164>
<http://localhost:3000/individual/vc155> <http://purl.org/co#item> <http://localhost:3000/individual/vci165>
<http://localhost:3000/individual/vc155> <http://purl.org/co#lastItem> <http://localhost:3000/individual/vci165>

<http://localhost:3000/individual/vci162> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#ListItem>
<http://localhost:3000/individual/vci162> <http://purl.org/co#index> "1"^^xsd:positiveInteger
<http://localhost:3000/individual/vci162> <http://purl.org/co#itemContent> <http://da-rdf.library.cornell.edu/individual/b3652730>
<http://localhost:3000/individual/vci162> <http://purl.org/co#nextItem> <http://localhost:3000/individual/vci163>

<http://localhost:3000/individual/vci163> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#ListItem>
<http://localhost:3000/individual/vci163> <http://purl.org/co#index> "2"^^xsd:positiveInteger
<http://localhost:3000/individual/vci163> <http://purl.org/co#itemContent> <http://da-rdf.library.cornell.edu/individual/b3652234>
<http://localhost:3000/individual/vci163> <http://purl.org/co#nextItem> <http://localhost:3000/individual/vci164>

<http://localhost:3000/individual/vci164> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#ListItem>
<http://localhost:3000/individual/vci164> <http://purl.org/co#index> "3"^^xsd:positiveInteger
<http://localhost:3000/individual/vci164> <http://purl.org/co#itemContent> <http://da-rdf.library.cornell.edu/individual/b3652543>
<http://localhost:3000/individual/vci164> <http://purl.org/co#nextItem> <http://localhost:3000/individual/vci165>

<http://localhost:3000/individual/vci165> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://purl.org/co#ListItem>
<http://localhost:3000/individual/vci165> <http://purl.org/co#index> "4"^^xsd:positiveInteger
<http://localhost:3000/individual/vci165> <http://purl.org/co#itemContent> <http://da-rdf.library.cornell.edu/individual/b3652884>


 
 
 

 Code Block
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titleTurtle using Collection ontology's List class
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix co:      <http://purl.org/co> .

<http://localhost:3000/individual/vc155> a co:List ;
  co:size       "4"^^xsd:nonNegativeInteger ;
  co:firstItem  <http://localhost:3000/individual/vci162> ;
  co:item       <http://localhost:3000/individual/vci162> ;
  co:item       <http://localhost:3000/individual/vci163> ;
  co:item       <http://localhost:3000/individual/vci164> ;
  co:item       <http://localhost:3000/individual/vci165> ;
  co:lastItem   <http://localhost:3000/individual/vci165> .
 
<http://localhost:3000/individual/vci162> a co:ListItem ;
  co:index        "1"^^xsd:positiveInteger ;
  co:itemContent  <http://da-rdf.library.cornell.edu/individual/b3652730> ;
  co:nextItem     <http://localhost:3000/individual/vci163> .

<http://localhost:3000/individual/vci163> a co:ListItem ;
  co:index        "2"^^xsd:positiveInteger ;
  co:itemContent  <http://da-rdf.library.cornell.edu/individual/b3652234> ;
  co:nextItem     <http://localhost:3000/individual/vci164> .

<http://localhost:3000/individual/vci164> a co:ListItem ;
  co:index        "3"^^xsd:positiveInteger ;
  co:itemContent  <http://da-rdf.library.cornell.edu/individual/b3652543> ;
  co:nextItem     <http://localhost:3000/individual/vci165> .

<http://localhost:3000/individual/vci165> a co:ListItem ;
  co:index        "4"^^xsd:positiveInteger ;
  co:itemContent  <http://da-rdf.library.cornell.edu/individual/b3652884> .

 
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Example 2-ore:  A Virtual Collection as an ordered collection of items using ORE Ontology's Aggregation with multiple ordered items
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 Code Block
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<http://localhost:3000/individual/vc155> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.openarchives.org/ore/terms/Aggregation> .
<http://localhost:3000/individual/vc155> <http://www.openarchives.org/ore/terms/aggregates> <http://da-rdf.library.cornell.edu/individual/b3652730> .
<http://localhost:3000/individual/vc155> <http://www.openarchives.org/ore/terms/aggregates> <http://da-rdf.library.cornell.edu/individual/b3652234> .
<http://localhost:3000/individual/vc155> <http://www.openarchives.org/ore/terms/aggregates> <http://da-rdf.library.cornell.edu/individual/b3652543> .

<http://localhost:3000/individual/pxy162> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.openarchives.org/ore/terms/Proxy> .
<http://localhost:3000/individual/pxy162> <http://www.openarchives.org/ore/terms/proxyFor> <http://da-rdf.library.cornell.edu/individual/b3652730> .
<http://localhost:3000/individual/pxy162> <http://www.openarchives.org/ore/terms/proxyIn> <http://localhost:3000/individual/vc155> .
<http://localhost:3000/individual/pxy162> <http://www.iana.org/assignments/relation/next> <http://localhost:3000/individual/pxy163> .

<http://localhost:3000/individual/pxy163> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.openarchives.org/ore/terms/Proxy> .
<http://localhost:3000/individual/pxy163> <http://www.openarchives.org/ore/terms/proxyFor> <http://da-rdf.library.cornell.edu/individual/b3652234> .
<http://localhost:3000/individual/pxy163> <http://www.openarchives.org/ore/terms/proxyIn> <http://localhost:3000/individual/vc155> .
<http://localhost:3000/individual/pxy163> <http://www.iana.org/assignments/relation/next> <http://localhost:3000/individual/pxy164> .

<http://localhost:3000/individual/pxy164> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.openarchives.org/ore/terms/Proxy> .
<http://localhost:3000/individual/pxy164> <http://www.openarchives.org/ore/terms/proxyFor> <http://da-rdf.library.cornell.edu/individual/b3652543> .
<http://localhost:3000/individual/pxy164> <http://www.openarchives.org/ore/terms/proxyIn> <http://localhost:3000/individual/vc155> .

 
 
 
 Code Block
languagenone
titleTurtle using ORE ontology's Aggregation class
@prefix ore:     <http://www.openarchives.org/ore/terms/> .
@prefix iana:    <http://www.iana.org/assignments/relation/> .
 
<http://localhost:3000/individual/vc155> a ore:Aggregation ;
  ore:aggregates <http://da-rdf.library.cornell.edu/individual/b3652730> ;
  ore:aggregates <http://da-rdf.library.cornell.edu/individual/b3652234> ;
  ore:aggregates <http://da-rdf.library.cornell.edu/individual/b3652543> .
 
<http://localhost:3000/individual/pxy162> a ore:Proxy ;
  ore:proxyFor <http://da-rdf.library.cornell.edu/individual/b3652730> ;
  ore:proxyIn <http://localhost:3000/individual/vc155> ;
  iana:next <http://localhost:3000/individual/pxy163> .
 
<http://localhost:3000/individual/pxy163> a ore:Proxy ;
  ore:proxyFor <http://da-rdf.library.cornell.edu/individual/b3652234> ;
  ore:proxyIn <http://localhost:3000/individual/vc155> ;
  iana:next <http://localhost:3000/individual/pxy164> .
 
<http://localhost:3000/individual/pxy164> a ore:Proxy ;
  ore:proxyFor <http://da-rdf.library.cornell.edu/individual/b3652543> ;
  ore:proxyIn <http://localhost:3000/individual/vc155> .

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Unordered Collection Examples
Example 3-co:  A Virtual Collection as an unordered collection of items using Collection Ontology's Bag with one item
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