C Line
E81066
The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| C Line canonical | 6 |
How this entity was disambiguated
This entity first appeared as the object of triple T647710 — 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: C Line Context triple: [Los Angeles Metro Rail, hasLine, C Line]
-
A.
Line 5
Line 5 is one of the main lines of the Santiago Metro in Chile, running across several key districts and serving as a major east–west transit corridor in the city.
-
B.
Line 5
Line 5 is a major north–south route of the Beijing Subway known for connecting key residential and commercial areas through the city center.
-
C.
Line 5
Line 5 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.
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.
-
E.
Line 4
Line 4 is a major line of the Santiago Metro in Chile, serving key residential and commercial areas in the southeastern part of 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: C Line Target entity description: The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
-
A.
Line 5
Line 5 is one of the main lines of the Santiago Metro in Chile, running across several key districts and serving as a major east–west transit corridor in the city.
-
B.
Line 5
Line 5 is a major north–south route of the Beijing Subway known for connecting key residential and commercial areas through the city center.
-
C.
Line 5
Line 5 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.
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.
-
E.
Line 4
Line 4 is a major line of the Santiago Metro in Chile, serving key residential and commercial areas in the southeastern part of the city.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line
ⓘ
public transit route ⓘ |
| accessibility | wheelchair accessible ⓘ |
| colorOnSystemMap | green ⓘ |
| connectsTo |
A Line (Los Angeles Metro)
ⓘ
Metro J Line ⓘ
surface form:
J Line (Los Angeles Metro)
K Line (Los Angeles Metro) ⓘ Los Angeles World Airports ⓘ
surface form:
Los Angeles International Airport area
Los Angeles Metro bus lines ⓘ
surface form:
Los Angeles Metro Bus network
|
| corridor | Interstate 105 freeway ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| environment | median of freeway for most of its length ⓘ |
| fareSystem | TAP card ⓘ |
| formerName | Green Line ⓘ |
| gauge | standard gauge ⓘ |
| hasRouteDesignation | C ⓘ |
| infrastructureType | double track ⓘ |
| isInUrbanArea |
Greater Los Angeles Area
ⓘ
surface form:
Los Angeles metropolitan area
|
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles County ⓘ |
| mode | light rail transit ⓘ |
| openingDate | 1995 ⓘ |
| operator | Los Angeles County Metropolitan Transportation Authority ⓘ |
| owner | Los Angeles County Metropolitan Transportation Authority ⓘ |
| partOf | Los Angeles Metro Rail ⓘ |
| primaryAlignment | I-105 freeway median ⓘ |
| purpose |
connect South Bay communities
ⓘ
provide alternative to freeway driving along I-105 ⓘ |
| regionServed |
South Bay
ⓘ
surface form:
South Bay region
|
| rightOfWayType | grade-separated ⓘ |
| safetySystem | signalized light rail control ⓘ |
| servesAreaType |
coastal communities
ⓘ
inland communities ⓘ |
| servesFunction | east–west rapid transit corridor ⓘ |
| servicePattern | all-day frequent service ⓘ |
| system | Los Angeles Metro Rail ⓘ |
| ticketing | proof-of-payment ⓘ |
| transitType | light rail ⓘ |
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: C Line Description of subject: The C Line is a light rail route in the Los Angeles Metro Rail system that runs primarily along the I-105 freeway corridor, connecting coastal and inland communities in the South Bay region.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Green Line (Los Angeles Metro)