Line 4 – blue
E59988
Line 4 – blue is a major line of the Santiago Metro system in Chile, serving key residential and commercial areas in the city.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Line 4 – blue canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T478633 — 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 4 – blue Context triple: [Santiago Metro, hasLineColor, Line 4 – blue]
-
A.
Line 4 Sheppard
Line 4 Sheppard is a short, east–west subway line in Toronto’s transit system that primarily serves the Sheppard Avenue corridor in the city’s north end.
-
B.
Line 4A
Line 4A is a short branch line of the Santiago Metro in Chile that connects parts of southeastern Santiago to the main Line 4 corridor.
-
C.
Line 4
Line 4 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
-
D.
Metro Line 3
Metro Line 3 is a major Mexico City Metro route that runs north–south across the city, connecting key residential and commercial areas including the Gustavo A. Madero borough.
-
E.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
- 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 4 – blue Target entity description: Line 4 – blue is a major line of the Santiago Metro system in Chile, serving key residential and commercial areas in the city.
-
A.
Line 4 Sheppard
Line 4 Sheppard is a short, east–west subway line in Toronto’s transit system that primarily serves the Sheppard Avenue corridor in the city’s north end.
-
B.
Line 4A
Line 4A is a short branch line of the Santiago Metro in Chile that connects parts of southeastern Santiago to the main Line 4 corridor.
-
C.
Line 4
Line 4 is a route of Mexico City’s Metrobús bus rapid transit system that serves key corridors with dedicated lanes and high-capacity articulated buses.
-
D.
Metro Line 3
Metro Line 3 is a major Mexico City Metro route that runs north–south across the city, connecting key residential and commercial areas including the Gustavo A. Madero borough.
-
E.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| color | blue ⓘ |
| country | Chile ⓘ |
| fareSystem | integrated Santiago public transport fare system ⓘ |
| hasCityServed |
Santiago, Chile
ⓘ
linked to:
Santiago
|
| hasElectrification | electric traction ⓘ |
| hasInfrastructureType | underground and elevated ⓘ |
| hasLanguageOfSignage | Spanish ⓘ |
| hasLocale |
Greater Santiago
ⓘ
linked to:
Santiago Metropolitan Region
|
| hasOperator | Metro S.A. ⓘ |
| hasOwner | Government of Chile ⓘ |
| hasTrackGauge | standard gauge ⓘ |
| hasType | urban rail ⓘ |
| isMajorLineOf | Santiago Metro ⓘ |
| isPartOfNetwork |
Santiago Metro network
ⓘ
linked to:
Santiago Metro
|
| locatedIn |
Chile
ⓘ
Santiago ⓘ |
| modeOfTransport | metro ⓘ |
| partOf | Santiago Metro ⓘ |
| publicTransport | yes ⓘ |
| serves |
commercial areas of Santiago
ⓘ
residential areas of Santiago ⓘ |
| servesFunction | mass transit ⓘ |
| transportSystem |
Santiago Metro system
ⓘ
linked to:
Santiago Metro
|
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 4 – blue Description of subject: Line 4 – blue is a major line of the Santiago Metro system in Chile, serving key residential and commercial areas in the city.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.