A line
E464674
The A line is a major New York City Subway service that runs primarily along the Eighth Avenue Line in Manhattan and extends into Brooklyn and Queens.
All labels observed (1)
| Label | Occurrences |
|---|---|
| A line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4731715 — 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 Context triple: [New York City Subway F line, hasConnection, A line]
-
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 1
Line 1 is one of the main east–west rapid transit lines of the Beijing Subway, serving as a core corridor through central Beijing.
-
C.
Line 1
Line 1 is the main north–south route of the Tehran Metro system, serving as one of its busiest and most important rapid transit lines.
-
D.
Line 1
Line 1 is the first planned rapid transit line of the Ho Chi Minh City Metro, intended to connect central districts with outlying areas as part of the city’s developing urban rail network.
-
E.
Line 1
Line 1 is a major rapid transit line of the Guangzhou Metro system in Guangzhou, China, serving as one of the city's primary east–west corridors.
- 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 Target entity description: The A line is a major New York City Subway service that runs primarily along the Eighth Avenue Line in Manhattan and extends into Brooklyn and Queens.
-
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 1
Line 1 is one of the main east–west rapid transit lines of the Beijing Subway, serving as a core corridor through central Beijing.
-
C.
Line 1
Line 1 is the main north–south route of the Tehran Metro system, serving as one of its busiest and most important rapid transit lines.
-
D.
Line 1
Line 1 is the first planned rapid transit line of the Ho Chi Minh City Metro, intended to connect central districts with outlying areas as part of the city’s developing urban rail network.
-
E.
Line 1
Line 1 is a major rapid transit line of the Guangzhou Metro system in Guangzhou, China, serving as one of the city's primary east–west corridors.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway service
ⓘ
rapid transit service ⓘ |
| accessibility | serves multiple ADA-accessible stations along its route ⓘ |
| boroughServed |
Brooklyn
ⓘ
Manhattan ⓘ Queens NERFINISHED ⓘ |
| color | blue ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| depot |
Pitkin Yard
NERFINISHED
ⓘ
Rockaway Park Yard NERFINISHED ⓘ |
| division | IND Division ⓘ |
| electrification | 600 V DC third rail ⓘ |
| fareSystem |
MetroCard
NERFINISHED
ⓘ
OMNY NERFINISHED ⓘ |
| hasBranch |
Far Rockaway branch
NERFINISHED
ⓘ
Lefferts Boulevard branch NERFINISHED ⓘ Rockaway Park shuttle branch (partial through service at times) NERFINISHED ⓘ |
| introducedAsINDService | 1932 ⓘ |
| locale | New York City NERFINISHED ⓘ |
| manhattanTrunkColorFamily | Eighth Avenue services ⓘ |
| notableFeature | longest local-to-terminal run in the New York City Subway system by distance ⓘ |
| operator | New York City Transit Authority NERFINISHED ⓘ |
| overnightService | operates local in Manhattan overnight ⓘ |
| owner | Metropolitan Transportation Authority ⓘ |
| primaryManhattanTrunkLine | IND Eighth Avenue Line NERFINISHED ⓘ |
| rollingStock |
R160 subway cars
NERFINISHED
ⓘ
R46 subway cars ⓘ |
| serviceClass | lettered service ⓘ |
| serviceColorHex | #0039A6 ⓘ |
| serviceFrequency | 24-hour service ⓘ |
| servicePattern |
express in Brooklyn
ⓘ
express in Manhattan ⓘ local in Queens ⓘ |
| serviceSymbol | A ⓘ |
| serviceType | express service ⓘ |
| sharesTrunkWith |
C train
NERFINISHED
ⓘ
E train (portion of Eighth Avenue Line) NERFINISHED ⓘ |
| system | New York City Subway ⓘ |
| terminalStation |
Far Rockaway–Mott Avenue
NERFINISHED
ⓘ
Inwood–207th Street NERFINISHED ⓘ Ozone Park–Lefferts Boulevard NERFINISHED ⓘ Rockaway Park–Beach 116th Street NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| usesLine |
IND Concourse Line (rush-hour variant via Dykman–207th connection historically/operationally limited)
NERFINISHED
ⓘ
IND Eighth Avenue Line NERFINISHED ⓘ IND Fulton Street Line NERFINISHED ⓘ IND Rockaway Line NERFINISHED ⓘ |
| weekdayService | operates at frequent headways during peak hours ⓘ |
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 Description of subject: The A line is a major New York City Subway service that runs primarily along the Eighth Avenue Line in Manhattan and extends into Brooklyn and Queens.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.