B Line (Los Angeles Metro)
E372503
The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T2996042 — 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: B Line (Los Angeles Metro) Context triple: [Red Line (Los Angeles Metro), formerNameOf, B Line (Los Angeles Metro)]
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A.
E Line (Los Angeles Metro)
The E Line (Los Angeles Metro) is a light rail line in Los Angeles County that runs east–west, linking downtown Los Angeles with Santa Monica and several major Westside and Expo Corridor destinations.
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B.
L Line (Los Angeles Metro)
The L Line was a light rail route in the Los Angeles Metro Rail system that connected East Los Angeles and the San Gabriel Valley to downtown and northeast Los Angeles before being restructured into other lines.
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C.
K Line (Los Angeles Metro)
The K Line is a light rail route in the Los Angeles Metro Rail system serving neighborhoods in South Los Angeles and connecting to major transit hubs.
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D.
C Line (Los Angeles Metro)
The C Line (Los Angeles Metro) is an east–west light rail route in Los Angeles County that primarily runs along the I-105 freeway corridor, linking coastal areas near Redondo Beach with inland transit hubs including connections to other Metro Rail lines.
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E.
A Line (Los Angeles Metro)
A Line (Los Angeles Metro) is a light rail line in Los Angeles County that runs north–south and east–west, linking downtown Los Angeles with surrounding communities such as Long Beach, Azusa, and East Los Angeles.
- 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: B Line (Los Angeles Metro) Target entity description: The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
-
A.
E Line (Los Angeles Metro)
The E Line (Los Angeles Metro) is a light rail line in Los Angeles County that runs east–west, linking downtown Los Angeles with Santa Monica and several major Westside and Expo Corridor destinations.
-
B.
L Line (Los Angeles Metro)
The L Line was a light rail route in the Los Angeles Metro Rail system that connected East Los Angeles and the San Gabriel Valley to downtown and northeast Los Angeles before being restructured into other lines.
-
C.
K Line (Los Angeles Metro)
The K Line is a light rail route in the Los Angeles Metro Rail system serving neighborhoods in South Los Angeles and connecting to major transit hubs.
-
D.
C Line (Los Angeles Metro)
The C Line (Los Angeles Metro) is an east–west light rail route in Los Angeles County that primarily runs along the I-105 freeway corridor, linking coastal areas near Redondo Beach with inland transit hubs including connections to other Metro Rail lines.
-
E.
A Line (Los Angeles Metro)
A Line (Los Angeles Metro) is a light rail line in Los Angeles County that runs north–south and east–west, linking downtown Los Angeles with surrounding communities such as Long Beach, Azusa, and East Los Angeles.
- F. None of above. chosen
Statements (44)
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: B Line (Los Angeles Metro) Description of subject: The B Line is a heavy-rail rapid transit line in the Los Angeles Metro system that runs primarily underground, connecting North Hollywood to downtown Los Angeles.
Referenced by (42)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Red Line (Los Angeles Metro)
subject surface form:
Red Line (Los Angeles Metro)
subject surface form:
E Line (Los Angeles Metro)
this entity surface form:
Los Angeles Metro B Line
this entity surface form:
Los Angeles Metro B Line
subject surface form:
Red Line (Los Angeles Metro)
subject surface form:
Red Line (Los Angeles Metro)
subject surface form:
Campo de Cahuenga
this entity surface form:
Los Angeles Metro B Line
this entity surface form:
Los Angeles Metro B Line
this entity surface form:
Los Angeles Metro B Line
Los Angeles Metro D Line (subway) along Wilshire corridor
→
connectsWith
→
B Line (Los Angeles Metro)
ⓘ
subject surface form:
Los Angeles Metro D Line
this entity surface form:
Los Angeles Metro B Line
this entity surface form:
B Line at 7th Street/Metro Center
this entity surface form:
B Line at Union Station (before restructuring)
this entity surface form:
LA Metro B Line
this entity surface form:
Red Line corridor (now B Line)
this entity surface form:
B Line Hollywood branch