MARC
E16027
MARC is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and other regional destinations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| MARC canonical | 12 |
| MARC outer zone | 1 |
| ODN (MARC) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T137341 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MARC Context triple: [MARC Train, brandName, MARC]
-
A.
MARC standards
MARC standards are a set of bibliographic data formats used worldwide to structure and exchange library catalog information in a consistent, machine-readable way.
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B.
Library of Congress catalogers
Library of Congress catalogers are professional librarians and metadata specialists at the U.S. Library of Congress who create and maintain authoritative bibliographic records for materials in its collections.
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C.
Library of Congress Control Number
The Library of Congress Control Number is a unique identification system used by the Library of Congress to catalog and organize bibliographic records for books and other materials.
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D.
Library of Congress Classification
Library of Congress Classification is a comprehensive alphanumeric library classification system used primarily by academic and research libraries to organize and arrange their collections by subject.
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E.
Library of Congress Subject Headings
Library of Congress Subject Headings is a comprehensive controlled vocabulary used by libraries worldwide to provide standardized subject access to cataloged materials.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: MARC Target entity description: MARC is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and other regional destinations.
-
A.
MARC standards
MARC standards are a set of bibliographic data formats used worldwide to structure and exchange library catalog information in a consistent, machine-readable way.
-
B.
Library of Congress catalogers
Library of Congress catalogers are professional librarians and metadata specialists at the U.S. Library of Congress who create and maintain authoritative bibliographic records for materials in its collections.
-
C.
Library of Congress Control Number
The Library of Congress Control Number is a unique identification system used by the Library of Congress to catalog and organize bibliographic records for books and other materials.
-
D.
Library of Congress Classification
Library of Congress Classification is a comprehensive alphanumeric library classification system used primarily by academic and research libraries to organize and arrange their collections by subject.
-
E.
Library of Congress Subject Headings
Library of Congress Subject Headings is a comprehensive controlled vocabulary used by libraries worldwide to provide standardized subject access to cataloged materials.
- F. None of above. chosen
Statements (46)
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: MARC Description of subject: MARC is a commuter rail service in Maryland that connects Washington, D.C. with Baltimore and other regional destinations.
Referenced by (14)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: MARC
linked to: MARC