North Line extension of Red Line
E416833
The North Line extension of the Red Line is a METRORail light rail expansion in Houston that extends service north from downtown to additional neighborhoods and transit connections.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North Line extension of Red Line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4177091 — 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: North Line extension of Red Line Context triple: [Houston METRORail, expansionPhase, North Line extension of Red Line]
-
A.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
B.
Green Line southern extension
The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
-
C.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
D.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
E.
Metra Electric District line
The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
- 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: North Line extension of Red Line Target entity description: The North Line extension of the Red Line is a METRORail light rail expansion in Houston that extends service north from downtown to additional neighborhoods and transit connections.
-
A.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
B.
Green Line southern extension
The Green Line southern extension is a Washington Metro expansion project that extended the Green Line further into the suburbs of Prince George's County, Maryland, adding several new stations beyond its previous terminus.
-
C.
Green Line Extension
The Green Line Extension is a Massachusetts Bay Transportation Authority light rail project that extends Boston’s Green Line service into previously unserved neighborhoods in Somerville and Medford.
-
D.
Purple Line Express
Purple Line Express is a rush-hour rapid transit service of the Chicago Transit Authority that operates as a faster, limited-stop variant of the Purple Line.
-
E.
Metra Electric District line
The Metra Electric District line is a commuter rail line in the Chicago metropolitan area that runs from downtown Chicago to its southern suburbs, serving key destinations along the South Side and beyond.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
light rail line extension
ⓘ
public transit infrastructure project ⓘ |
| connectsTo |
additional neighborhoods north of downtown Houston
ⓘ
additional transit connections in north Houston ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| direction | north ⓘ |
| electrification | overhead line ⓘ |
| extendsFrom |
Downtown Houston
ⓘ
University of Houston–Downtown station area ⓘ |
| extendsTo |
Northline area of Houston
ⓘ
Northside neighborhoods of Houston ⓘ |
| fareSystem | METRO Q Fare system ⓘ |
| hasFunction |
extend Red Line service north from downtown Houston
ⓘ
improve transit access to north Houston neighborhoods ⓘ provide additional connections to the METRORail network ⓘ |
| locatedIn |
Houston
ⓘ
Texas ⓘ United States of America ⓘ
surface form:
United States
|
| mode | rail ⓘ |
| operator |
METRO (Houston)
ⓘ
Metropolitan Transit Authority of Harris County NERFINISHED ⓘ |
| ownedBy | Metropolitan Transit Authority of Harris County NERFINISHED ⓘ |
| partOf |
METRORail light rail
ⓘ
surface form:
METRORail
METRORail Red Line ⓘ
surface form:
Red Line (METRORail)
|
| partOfNetwork |
Houston METRORail
ⓘ
surface form:
Houston METRORail network
|
| railSystem | METRORail ONNED1 ⓘ |
| regionServed | Harris County, Texas NERFINISHED ⓘ |
| serves |
commuters in north Houston
ⓘ
residents of neighborhoods north of downtown Houston ⓘ |
| serviceType | urban rail transit ⓘ |
| trackGauge | standard gauge ⓘ |
| 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: North Line extension of Red Line Description of subject: The North Line extension of the Red Line is a METRORail light rail expansion in Houston that extends service north from downtown to additional neighborhoods and transit connections.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.