Blue Line is colored blue
E505501
Blue Line is colored blue is a subway line in Boston’s public transit system, commonly identified by its blue color on maps and signage.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Blue Line is colored blue canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5249041 — 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: Blue Line is colored blue Context triple: [Boston subway, colorCodeSystem, Blue Line is colored blue]
-
A.
Blue line
The Blue line is one of the main lines of the Stockholm metro system, connecting central Stockholm with several northern and western suburbs.
-
B.
Green line
The Green line is one of the main color-coded routes in the Stockholm metro system, serving numerous central and suburban stations across the city.
-
C.
MAX Blue Line
MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
-
D.
Blue Line (selected runs over time)
Blue Line (selected runs over time) refers to specific services on Chicago’s Blue Line rapid transit route that at certain periods have been operated with CTA 5000-series railcars.
-
E.
Red line
The Red line is one of the main color-coded routes of the Stockholm metro system, serving numerous central and suburban stations across the city.
- 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: Blue Line is colored blue Target entity description: Blue Line is colored blue is a subway line in Boston’s public transit system, commonly identified by its blue color on maps and signage.
-
A.
Blue line
The Blue line is one of the main lines of the Stockholm metro system, connecting central Stockholm with several northern and western suburbs.
-
B.
Green line
The Green line is one of the main color-coded routes in the Stockholm metro system, serving numerous central and suburban stations across the city.
-
C.
MAX Blue Line
MAX Blue Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with eastern and western suburbs as part of the region’s MAX Light Rail system.
-
D.
Blue Line (selected runs over time)
Blue Line (selected runs over time) refers to specific services on Chicago’s Blue Line rapid transit route that at certain periods have been operated with CTA 5000-series railcars.
-
E.
Red line
The Red line is one of the main color-coded routes of the Stockholm metro system, serving numerous central and suburban stations across the city.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
public transportation infrastructure
ⓘ
rapid transit line ⓘ |
| color | blue ⓘ |
| connectsAtStation |
Airport station
NERFINISHED
ⓘ
Government Center station NERFINISHED ⓘ State station NERFINISHED ⓘ |
| connectsWith |
Green Line (MBTA)
NERFINISHED
ⓘ
MBTA Commuter Rail NERFINISHED ⓘ Orange Line (MBTA) NERFINISHED ⓘ Silver Line (MBTA) NERFINISHED ⓘ |
| electrification | third rail ⓘ |
| fareSystem |
CharlieCard
NERFINISHED
ⓘ
CharlieTicket NERFINISHED ⓘ |
| hasMapSymbol | blue line on MBTA subway map ⓘ |
| hasRollingStockType | electric multiple unit ⓘ |
| hasStation |
Airport station
NERFINISHED
ⓘ
Aquarium station NERFINISHED ⓘ Beachmont station NERFINISHED ⓘ Bowdoin station NERFINISHED ⓘ Government Center station NERFINISHED ⓘ Maverick station NERFINISHED ⓘ Orient Heights station NERFINISHED ⓘ Revere Beach station NERFINISHED ⓘ State station NERFINISHED ⓘ Suffolk Downs station NERFINISHED ⓘ Wonderland station NERFINISHED ⓘ Wood Island station NERFINISHED ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
surface form:
Boston
Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| modeOfTransport | rail ⓘ |
| openedAsRapidTransit | 1924 ⓘ |
| operator |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| originalName | East Boston Tunnel line NERFINISHED ⓘ |
| owner |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| partOf |
MBTA subway system
NERFINISHED
ⓘ
Massachusetts Bay Transportation Authority NERFINISHED ⓘ |
| representedByColorOnMaps | blue ⓘ |
| servesCity | Boston NERFINISHED ⓘ |
| servesDowntownArea | Downtown Boston NERFINISHED ⓘ |
| servesFacility | Logan International Airport NERFINISHED ⓘ |
| servesNeighborhood |
East Boston
NERFINISHED
ⓘ
Revere NERFINISHED ⓘ |
| servesRegion | Greater Boston NERFINISHED ⓘ |
| system | MBTA NERFINISHED ⓘ |
| terminus |
Bowdoin station
NERFINISHED
ⓘ
Wonderland station NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
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: Blue Line is colored blue Description of subject: Blue Line is colored blue is a subway line in Boston’s public transit system, commonly identified by its blue color on maps and signage.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.