Line 9–Emerald
E952229
Line 9–Emerald is a New York City Subway service running along the Lexington Avenue Line in Manhattan and into Brooklyn, typically designated by the dark green color on subway maps.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 9–Emerald canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11893953 — 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: Line 9–Emerald Context triple: [Line 5–Lilac, connectsWith, Line 9–Emerald]
-
A.
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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B.
Line 9
Line 9 is a rapid transit line of the Chongqing Metro system in Chongqing, China, serving as part of the city's expanding urban rail network.
-
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 route within the STC Metro system, serving as one of its numbered urban rail lines.
-
E.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
- 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: Line 9–Emerald Target entity description: Line 9–Emerald is a New York City Subway service running along the Lexington Avenue Line in Manhattan and into Brooklyn, typically designated by the dark green color on subway maps.
-
A.
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.
-
B.
Line 9
Line 9 is a rapid transit line of the Chongqing Metro system in Chongqing, China, serving as part of the city's expanding urban rail network.
-
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 route within the STC Metro system, serving as one of its numbered urban rail lines.
-
E.
Line 9
Line 9 is a rapid transit line of the Guangzhou Metro system serving parts of Guangzhou, China.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway service
ⓘ
rapid transit service ⓘ |
| borough |
Brooklyn
ⓘ
Manhattan ⓘ |
| city | New York City ⓘ |
| color | dark green ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | 750 V DC third rail ⓘ |
| fareSystem | MTA New York City Subway fare system ⓘ |
| lineNumberOrLetter | 9 ⓘ |
| mapDesignation | Emerald NERFINISHED ⓘ |
| modeOfTransport | rail ⓘ |
| network | IRT division ⓘ |
| operatedBy |
Metropolitan Transportation Authority
ⓘ
New York City Transit Authority NERFINISHED ⓘ |
| representedOn | New York City Subway map ⓘ |
| serves |
Lexington Avenue corridor in Manhattan
NERFINISHED
ⓘ
selected neighborhoods in Brooklyn ⓘ |
| servicePattern |
continues into Brooklyn
ⓘ
runs along the Lexington Avenue Line in Manhattan ⓘ |
| system | New York City Subway ⓘ |
| ticketing |
MetroCard
NERFINISHED
ⓘ
OMNY contactless payment system NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| type | local and/or express subway service ⓘ |
| usesLine | IRT Lexington Avenue Line NERFINISHED ⓘ |
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: Line 9–Emerald Description of subject: Line 9–Emerald is a New York City Subway service running along the Lexington Avenue Line in Manhattan and into Brooklyn, typically designated by the dark green color on subway maps.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.