A Line (1990–2019 designation contextually reversed)
E395635
A Line (1990–2019 designation contextually reversed) refers to the former name of Los Angeles Metro’s light rail service now known as the A Line, which runs between downtown Los Angeles and Long Beach.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A Line (1990–2019 designation contextually reversed) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3878707 — 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: A Line (1990–2019 designation contextually reversed) Context triple: [Blue Line (Los Angeles Metro), formerName, A Line (1990–2019 designation contextually reversed)]
-
A.
1 Line
The 1 Line is a light rail route in the Seattle metropolitan area that forms the core north–south spine of Sound Transit's Link light rail system.
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B.
Line 9
Line 9 is a line of the Mexico City Metro system that serves as one of its key rapid transit routes across the city.
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C.
Line 9
Line 9 is a rapid transit line of the Beijing Subway system that serves as part of the city's urban rail network.
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D.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
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E.
Line 9
Line 9 is a major Barcelona Metro line designed as a long, partially automated route connecting key suburban and airport areas with the wider metropolitan network.
- 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: A Line (1990–2019 designation contextually reversed) Target entity description: A Line (1990–2019 designation contextually reversed) refers to the former name of Los Angeles Metro’s light rail service now known as the A Line, which runs between downtown Los Angeles and Long Beach.
-
A.
1 Line
The 1 Line is a light rail route in the Seattle metropolitan area that forms the core north–south spine of Sound Transit's Link light rail system.
-
B.
Line 9
Line 9 is a line of the Mexico City Metro system that serves as one of its key rapid transit routes across the city.
-
C.
Line 9
Line 9 is a rapid transit line of the Beijing Subway system that serves as part of the city's urban rail network.
-
D.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
-
E.
Line 9
Line 9 is a major Barcelona Metro line designed as a long, partially automated route connecting key suburban and airport areas with the wider metropolitan network.
- F. None of above. chosen
Statements (30)
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: A Line (1990–2019 designation contextually reversed) Description of subject: A Line (1990–2019 designation contextually reversed) refers to the former name of Los Angeles Metro’s light rail service now known as the A Line, which runs between downtown Los Angeles and Long Beach.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Blue Line (Los Angeles Metro)