Lucknow Metro
E119965
Lucknow Metro is a rapid transit system serving the city of Lucknow in Uttar Pradesh, India, designed to provide fast, modern urban transportation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Lucknow Metro canonical | 4 |
| Lucknow Metro Rail Corporation | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1026944 — 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: Lucknow Metro Context triple: [Lucknow, hasMetroSystem, Lucknow Metro]
-
A.
Ahmedabad Metro
Ahmedabad Metro is a rapid transit system serving the city of Ahmedabad and its surrounding areas in the Indian state of Gujarat.
-
B.
Hyderabad Metro
Hyderabad Metro is a rapid transit system serving the city of Hyderabad, India, featuring multiple elevated corridors designed to ease urban traffic congestion and improve public transportation.
-
C.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
-
D.
Nagpur Metro
Nagpur Metro is a rapid transit system serving the city of Nagpur in Maharashtra, India, designed to improve urban mobility and reduce traffic congestion.
-
E.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
- 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: Lucknow Metro Target entity description: Lucknow Metro is a rapid transit system serving the city of Lucknow in Uttar Pradesh, India, designed to provide fast, modern urban transportation.
-
A.
Ahmedabad Metro
Ahmedabad Metro is a rapid transit system serving the city of Ahmedabad and its surrounding areas in the Indian state of Gujarat.
-
B.
Hyderabad Metro
Hyderabad Metro is a rapid transit system serving the city of Hyderabad, India, featuring multiple elevated corridors designed to ease urban traffic congestion and improve public transportation.
-
C.
Mumbai Metro
Mumbai Metro is a rapid transit system serving the Mumbai metropolitan region, designed to alleviate congestion and complement the city’s suburban railway network.
-
D.
Nagpur Metro
Nagpur Metro is a rapid transit system serving the city of Nagpur in Maharashtra, India, designed to improve urban mobility and reduce traffic congestion.
-
E.
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi and its surrounding metropolitan region, known for its extensive network, modern infrastructure, and role in easing urban congestion.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
metro system
ⓘ
rapid transit system ⓘ |
| beganConstruction | 2014 ⓘ |
| cityServed | Lucknow ⓘ |
| commercialOperationStart | 2017 ⓘ |
| country | India ⓘ |
| electrification | 750 V DC third rail ⓘ |
| environmentalGoal |
promote public transport usage
ⓘ
reduce air pollution ⓘ |
| fareSystem |
contactless smart card
ⓘ
token-based tickets ⓘ |
| gauge | standard gauge ⓘ |
| hasFeature |
air-conditioned coaches
ⓘ
automatic fare collection system ⓘ disabled-friendly infrastructure ⓘ escalators and elevators at stations ⓘ |
| hasStationType |
at-grade
ⓘ
elevated ⓘ underground ⓘ |
| languageOfSignage |
English
ⓘ
Hindi ⓘ |
| line |
East–West Corridor
ⓘ
North–South Corridor ⓘ Red Line ⓘ |
| locatedIn |
Lucknow
ⓘ
Uttar Pradesh ⓘ |
| numberOfLines | 2 ⓘ |
| operator |
Lucknow Metro
self-linksurface differs
ⓘ
surface form:
Lucknow Metro Rail Corporation
Uttar Pradesh Metro Rail Corporation Limited ⓘ |
| owner |
Government of India
ⓘ
Government of Uttar Pradesh ⓘ |
| purpose |
provide fast transportation
ⓘ
reduce traffic congestion ⓘ urban mass transit ⓘ |
| region |
northern India
ⓘ
surface form:
North India
|
| rollingStockType | electric multiple unit ⓘ |
| safetyFeature |
CCTV surveillance
ⓘ
fire detection and suppression systems ⓘ platform screen doors at select stations ⓘ |
| signallingSystem |
CBTC-like modern signalling
ⓘ
automatic train control ⓘ automatic train protection ⓘ |
| stateServed | Uttar Pradesh ⓘ |
| systemLengthKm | approximately 33 ⓘ |
| ticketingTechnology | RFID smart cards ⓘ |
| transitType |
rapid transit
ⓘ
urban rail ⓘ |
| trialRunDate | 2016 ⓘ |
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: Lucknow Metro Description of subject: Lucknow Metro is a rapid transit system serving the city of Lucknow in Uttar Pradesh, India, designed to provide fast, modern urban transportation.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Lucknow Metro Rail Corporation