E
E99403
E is the letter designation for the E branch of Boston’s MBTA Green Line light rail service.
All labels observed (1)
| Label | Occurrences |
|---|---|
| E canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T850752 — 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: E Context triple: [MBTA Green Line E branch, lineLetter, E]
-
A.
E
The E is a New York City Subway line that runs between Queens and Manhattan, providing a key rapid transit connection used by AirTrain JFK passengers traveling to and from the city.
-
B.
EC
EC is the two-letter ISO 3166-1 alpha-2 country code assigned to Ecuador.
-
C.
ED
ED is the federal agency responsible for establishing policy, administering, and coordinating most education-related programs in the United States.
-
D.
EG
EG is the standard abbreviation for the Egmont Group, an international network of Financial Intelligence Units that collaborates to combat money laundering and terrorist financing.
-
E.
D
D is a statically typed, compiled systems programming language designed as a modern successor to C and C++, emphasizing high performance, safety features, and programmer productivity.
- 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: E Target entity description: E is the letter designation for the E branch of Boston’s MBTA Green Line light rail service.
-
A.
E
The E is a New York City Subway line that runs between Queens and Manhattan, providing a key rapid transit connection used by AirTrain JFK passengers traveling to and from the city.
-
B.
EC
EC is the two-letter ISO 3166-1 alpha-2 country code assigned to Ecuador.
-
C.
ED
ED is the federal agency responsible for establishing policy, administering, and coordinating most education-related programs in the United States.
-
D.
EG
EG is the standard abbreviation for the Egmont Group, an international network of Financial Intelligence Units that collaborates to combat money laundering and terrorist financing.
-
E.
D
D is a statically typed, compiled systems programming language designed as a modern successor to C and C++, emphasizing high performance, safety features, and programmer productivity.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA Green Line branch
ⓘ
light rail line ⓘ |
| color | Green ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | overhead catenary ⓘ |
| fareSystem | MBTA fare system ⓘ |
| hasAbbreviation |
Green Line E Branch
ⓘ
linked to:
Green Line E branch
|
| hasRouteNumber | E ⓘ |
| isBranchOf | Green Line ⓘ |
| isLetterDesignationFor | E branch of Boston’s MBTA Green Line light rail service ⓘ |
| lineDesignation | E ⓘ |
| locatedIn |
Boston
ⓘ
linked to:
Boston, Massachusetts
Massachusetts ⓘ United States ⓘ
linked to:
United States of America
|
| modeOfTransport | light rail ⓘ |
| operatedBy |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| owner |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| partOf | MBTA Green Line ⓘ |
| publicTransitSystem |
MBTA subway
ⓘ
linked to:
Boston subway
|
| regionServed | Greater Boston ⓘ |
| serviceType |
light rail transit
ⓘ
urban rail transit ⓘ |
| system | MBTA ⓘ |
| trackGauge | standard gauge ⓘ |
| uses | light rail vehicles ⓘ |
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: E Description of subject: E is the letter designation for the E branch of Boston’s MBTA Green Line light rail service.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.