Triple
T5300502
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Lucknow Metro |
E119965
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object |
Lucknow Metro Rail Corporation
Lucknow Metro Rail Corporation is the government-owned company responsible for developing, operating, and maintaining the metro rail system in Lucknow, India.
|
E119965
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Lucknow Metro Rail Corporation | Statement: [Lucknow Metro, operator, Lucknow Metro Rail Corporation]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Lucknow Metro Rail Corporation Context triple: [Lucknow Metro, operator, Lucknow Metro Rail Corporation]
-
A.
Lucknow Metro
Lucknow Metro is a rapid transit system serving the city of Lucknow in Uttar Pradesh, India, designed to provide fast, modern urban transportation.
-
B.
L&T Metro Rail (Hyderabad) Limited
L&T Metro Rail (Hyderabad) Limited is a special purpose vehicle of Larsen & Toubro responsible for developing, operating, and maintaining the Hyderabad Metro rail project under a public-private partnership.
-
C.
Gujarat Metro Rail Corporation Limited
Gujarat Metro Rail Corporation Limited is a state-owned company responsible for developing, operating, and maintaining metro rail systems in Gujarat, India.
-
D.
Maharashtra Metro Rail Corporation Limited
Maharashtra Metro Rail Corporation Limited is a state-owned joint venture between the Government of India and the Government of Maharashtra responsible for planning, constructing, and operating metro rail systems in Maharashtra, including the Nagpur Metro.
-
E.
Mumbai Metro One Private Limited
Mumbai Metro One Private Limited is a special purpose vehicle company responsible for operating and maintaining Mumbai Metro’s Line 1 between Versova and Ghatkopar.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Lucknow Metro Rail Corporation Triple: [Lucknow Metro, operator, Lucknow Metro Rail Corporation]
Generated description
Lucknow Metro Rail Corporation is the government-owned company responsible for developing, operating, and maintaining the metro rail system in Lucknow, India.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Lucknow Metro Rail Corporation Target entity description: Lucknow Metro Rail Corporation is the government-owned company responsible for developing, operating, and maintaining the metro rail system in Lucknow, India.
-
A.
Lucknow Metro
chosen
Lucknow Metro is a rapid transit system serving the city of Lucknow in Uttar Pradesh, India, designed to provide fast, modern urban transportation.
-
B.
L&T Metro Rail (Hyderabad) Limited
L&T Metro Rail (Hyderabad) Limited is a special purpose vehicle of Larsen & Toubro responsible for developing, operating, and maintaining the Hyderabad Metro rail project under a public-private partnership.
-
C.
Gujarat Metro Rail Corporation Limited
Gujarat Metro Rail Corporation Limited is a state-owned company responsible for developing, operating, and maintaining metro rail systems in Gujarat, India.
-
D.
Maharashtra Metro Rail Corporation Limited
Maharashtra Metro Rail Corporation Limited is a state-owned joint venture between the Government of India and the Government of Maharashtra responsible for planning, constructing, and operating metro rail systems in Maharashtra, including the Nagpur Metro.
-
E.
Mumbai Metro One Private Limited
Mumbai Metro One Private Limited is a special purpose vehicle company responsible for operating and maintaining Mumbai Metro’s Line 1 between Versova and Ghatkopar.
- F. None of above.
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69bd446f22b88190b6a47fb91c68a3e7 |
completed | March 20, 2026, 12:58 p.m. |
| NER | Named-entity recognition | batch_69bd850877688190a611d6293ca58d94 |
completed | March 20, 2026, 5:34 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69bf10ec33ac819083d283e960a049af |
completed | March 21, 2026, 9:43 p.m. |
| NEDg | Description generation | batch_69bf11c162f48190bdc56fea62575643 |
completed | March 21, 2026, 9:46 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69bf1237a644819081b1f1013e23cc66 |
completed | March 21, 2026, 9:48 p.m. |
Created at: March 20, 2026, 1:53 p.m.