METRORail Purple Line
E569597
The METRORail Purple Line is a light rail line in Houston, Texas, serving southeastern neighborhoods and key destinations as part of the city’s METRORail transit system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| METRORail Purple Line canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T6045028 — 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: METRORail Purple Line Context triple: [METRORail Red Line, connectsWith, METRORail Purple Line]
-
A.
METRORail Red Line
The METRORail Red Line is a light rail line in Houston, Texas, running through key central areas including downtown and the Museum District.
-
B.
METRO Blue Line
The METRO Blue Line is a major light rail transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with the Mall of America and Minneapolis–Saint Paul International Airport.
-
C.
METRORail Green Line
The METRORail Green Line is a light rail service in Houston, Texas, forming part of the city’s METRORail system and serving neighborhoods east of downtown.
-
D.
Metro E Line
The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
-
E.
Metro B Line
The Metro B Line is a heavy rail subway line in Los Angeles that runs through central and Hollywood areas as part of the LA Metro Rail system.
- 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: METRORail Purple Line Target entity description: The METRORail Purple Line is a light rail line in Houston, Texas, serving southeastern neighborhoods and key destinations as part of the city’s METRORail transit system.
-
A.
METRORail Red Line
The METRORail Red Line is a light rail line in Houston, Texas, running through key central areas including downtown and the Museum District.
-
B.
METRO Blue Line
The METRO Blue Line is a major light rail transit route in the Minneapolis–Saint Paul metropolitan area that connects downtown Minneapolis with the Mall of America and Minneapolis–Saint Paul International Airport.
-
C.
METRORail Green Line
The METRORail Green Line is a light rail service in Houston, Texas, forming part of the city’s METRORail system and serving neighborhoods east of downtown.
-
D.
Metro E Line
The Metro E Line is a light rail line in Los Angeles that runs between East Los Angeles and Santa Monica, providing a major east–west transit corridor across the city.
-
E.
Metro B Line
The Metro B Line is a heavy rail subway line in Los Angeles that runs through central and Hollywood areas as part of the LA Metro Rail system.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | light rail line ⓘ |
| color | purple ⓘ |
| connectsWith |
METRORail Green Line
NERFINISHED
ⓘ
METRORail Red Line NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead lines ⓘ |
| fareSystem |
METRO Q Card
NERFINISHED
ⓘ
METRO day pass ⓘ |
| hasRouteNumber | Purple Line NERFINISHED ⓘ |
| hasStation |
Altic/Howard Hughes station
NERFINISHED
ⓘ
Coffee Plant/Second Ward station NERFINISHED ⓘ EaDo/Stadium station NERFINISHED ⓘ Elgin/Third Ward station NERFINISHED ⓘ Leeland/Third Ward station NERFINISHED ⓘ Lockwood/Eastwood station NERFINISHED ⓘ MacGregor Park/MLK Jr. station NERFINISHED ⓘ Palm Center Transit Center NERFINISHED ⓘ TSU/UH Athletics District station NERFINISHED ⓘ UH South/University Oaks station NERFINISHED ⓘ |
| isPartOf | Houston public transportation network NERFINISHED ⓘ |
| locatedIn |
Houston
ⓘ
surface form:
Houston, Texas
Texas ⓘ United States of America ⓘ
surface form:
United States
|
| modeOfTransport | rail ⓘ |
| operator |
METRO
NERFINISHED
ⓘ
Metropolitan Transit Authority of Harris County NERFINISHED ⓘ |
| ownedBy | Metropolitan Transit Authority of Harris County NERFINISHED ⓘ |
| partOf | METRORail NERFINISHED ⓘ |
| regionServed | Harris County, Texas NERFINISHED ⓘ |
| safetySystem | traffic signal priority ⓘ |
| serves |
BBVA Compass Stadium
NERFINISHED
ⓘ
East End, Houston NERFINISHED ⓘ Houston Dynamo FC home stadium ⓘ Shell Energy Stadium NERFINISHED ⓘ Texas Southern University NERFINISHED ⓘ Third Ward, Houston NERFINISHED ⓘ University of Houston NERFINISHED ⓘ southeastern Houston neighborhoods ⓘ |
| system | METRORail light rail system ⓘ |
| terminus |
Downtown Houston area
NERFINISHED
ⓘ
Palm Center Transit Center NERFINISHED ⓘ |
| ticketing | proof-of-payment system ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | light rail ⓘ |
| usesRightOfWay |
dedicated rail corridor
ⓘ
street-running tracks ⓘ |
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: METRORail Purple Line Description of subject: The METRORail Purple Line is a light rail line in Houston, Texas, serving southeastern neighborhoods and key destinations as part of the city’s METRORail transit system.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.