Triple
T3246637
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Namma Metro |
E68080
|
entity |
| Predicate | abbreviation |
P43
|
FINISHED |
| Object |
BMRCL
BMRCL is the government-owned corporation responsible for developing, operating, and maintaining the Namma Metro rapid transit system in Bengaluru, India.
|
E340576
|
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: BMRCL | Statement: [Namma Metro, abbreviation, BMRCL]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: BMRCL Context triple: [Namma Metro, abbreviation, BMRCL]
-
A.
DMRC
DMRC is the Delhi Metro Rail Corporation, the organization responsible for planning, constructing, and operating the Delhi Metro system.
-
B.
Chennai railway division
Chennai railway division is a major administrative division of Indian Railways responsible for operating and managing railway services in and around the Chennai region.
-
C.
Indian Railways
Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
-
D.
Chennai Metro
Chennai Metro is a rapid transit system serving the Indian city of Chennai, providing urban rail connectivity across key residential, commercial, and industrial areas.
-
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: BMRCL Triple: [Namma Metro, abbreviation, BMRCL]
Generated description
BMRCL is the government-owned corporation responsible for developing, operating, and maintaining the Namma Metro rapid transit system in Bengaluru, India.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: BMRCL Target entity description: BMRCL is the government-owned corporation responsible for developing, operating, and maintaining the Namma Metro rapid transit system in Bengaluru, India.
-
A.
DMRC
DMRC is the Delhi Metro Rail Corporation, the organization responsible for planning, constructing, and operating the Delhi Metro system.
-
B.
Chennai railway division
Chennai railway division is a major administrative division of Indian Railways responsible for operating and managing railway services in and around the Chennai region.
-
C.
Indian Railways
Indian Railways is India’s state-owned national railway system, operating one of the world’s largest rail networks for passenger and freight transport across the country.
-
D.
Chennai Metro
Chennai Metro is a rapid transit system serving the Indian city of Chennai, providing urban rail connectivity across key residential, commercial, and industrial areas.
-
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
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_69ad858e4c708190aa31d486cfee8a6a |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69adaf1c184c8190a43a3594decd0920 |
completed | March 8, 2026, 5:17 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b277639508819091390086a3c511d1 |
completed | March 12, 2026, 8:20 a.m. |
| NEDg | Description generation | batch_69b2786c6bc88190bea732592426776d |
completed | March 12, 2026, 8:25 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b27927308c81909c1dceb825eb1b81 |
completed | March 12, 2026, 8:28 a.m. |
Created at: March 8, 2026, 3:09 p.m.