Triple
T3211698
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chennai Central railway station |
E67294
|
entity |
| Predicate | connectedTo |
P37
|
FINISHED |
| Object | Chennai Metro |
E68347
|
NE FINISHED |
How this triple was built (2 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: Chennai Metro | Statement: [Chennai Central railway station, connectedTo, Chennai Metro]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai Metro Context triple: [Chennai Central railway station, connectedTo, Chennai Metro]
-
A.
Chennai Metro
chosen
Chennai Metro is a rapid transit system serving the Indian city of Chennai, providing urban rail connectivity across key residential, commercial, and industrial areas.
-
B.
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.
-
C.
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.
-
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.
Kolkata Metro
Kolkata Metro is India’s oldest rapid transit system, serving as a major urban rail network for the city of Kolkata and its surrounding areas.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69ad858ac36c81909962589cd277d6e2 |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69adaaba224c8190ad2f4e0ed1c2ca4a |
completed | March 8, 2026, 4:58 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b262326d508190a4a702ed549fed99 |
completed | March 12, 2026, 6:50 a.m. |
Created at: March 8, 2026, 3:07 p.m.