tl;dr: Does LoC intend that its relator properties be used with both
"thing" and "string" objects?
kc
On 10/10/23 8:02 AM, McDonald, Stephen wrote:
That is not correct. The statement
<rdfs:subPropertyOf
rdf:resource="http://purl.org/dc/elements/1.1/contributor"/>
is a single predicate-object statement, enclosed within angle brackets.
The following statement
<rdf:type
rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
is also separate statement, enclosed within angle brackets. The OWL statement
is not part of the subPropertyOf statement. The next statement is also a
separate statement. So we have three statements:
subPropertyOf: DC contributor
type: owl ObjectProperty
type: BIBFRAME role
The term you were looking up is the implied subject of the statements, making
these RDF triples.
Steve McDonald
steve.mcdon...@tufts.edu
-----Original Message-----
From: Code for Libraries <CODE4LIB@LISTS.CLIR.ORG> On Behalf Of Karen
Coyle
Sent: Monday, October 9, 2023 5:36 PM
To: CODE4LIB@LISTS.CLIR.ORG
Subject: [External] [CODE4LIB] Question about multiple declarations
All,
I am looking at the LoC relators at id.loc.gov, and am trying to understand the
implications of the multiple declarations for relator terms.
<rdfs:subPropertyOf
rdf:resource="http://purl.org/dc/elements/1.1/contributor"/>
<rdf:type
rdf:resource="http://www.w3.org/2002/07/owl#ObjectProperty"/>
<rdf:type rdf:resource="http://id.loc.gov/ontologies/bibframe/Role"/>
dct:contributor is not an Object Property; there is no object type given, so I
suppose it is de facto an Annotation Property. I read the next statement as
narrowing, so at statement 2 we have:
subproperty of dct:contributor AND an owl:ObjectProperty
If my reading is correct, it would be a violation of this to use the relator
with a
string rather than a thing.
(Stop me here if I'm wrong.)
Then the 3rd statement appears to say that the relator is a bf:Role, which is a
BIBFRAME-specific class. I can't wrap my head around the functionality of this
statement and would love a brief explanation. I'm undoubtedly not into
BIBFRAME deep enough to grok this.
Also, my reading is that each relator is ALL THREE OF THESE; this is an AND not
at OR. Right?
Thanks for any help,
kc
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Karen Coyle
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Karen Coyle
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