Triple
T14046936
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station |
E337979
|
entity |
| Predicate | railwayLine |
P848
|
FINISHED |
| Object | Chennai–Howrah line |
E718351
|
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–Howrah line | Statement: [Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station, railwayLine, Chennai–Howrah line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai–Howrah line Context triple: [Puratchi Thalaivar Dr. M.G. Ramachandran Central Railway Station, railwayLine, Chennai–Howrah line]
-
A.
Mumbai–Chennai line
The Mumbai–Chennai line is a major Indian Railways trunk route connecting the western metropolis of Mumbai with the southern city of Chennai, passing through key junctions across Maharashtra, Karnataka, Andhra Pradesh, and Tamil Nadu.
-
B.
Howrah–Chennai main line
chosen
The Howrah–Chennai main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with Chennai along the eastern coast, serving as a key corridor for both passenger and freight traffic.
-
C.
Chennai–Bangalore line
The Chennai–Bangalore line is a major Indian Railways trunk route connecting the cities of Chennai in Tamil Nadu and Bengaluru in Karnataka, serving numerous intermediate towns and suburban areas.
-
D.
Delhi–Chennai line
The Delhi–Chennai line is a major Indian Railways trunk route connecting the national capital New Delhi with the southern metropolis Chennai, passing through key central Indian cities such as Nagpur.
-
E.
Chennai–Thiruvananthapuram line
The Chennai–Thiruvananthapuram line is a major Indian Railways route in South India that connects Tamil Nadu’s capital Chennai with Kerala’s capital Thiruvananthapuram, serving numerous important cities and towns along the way.
- 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_69d81c664e48819088cbd8f433aeffe5 |
completed | April 9, 2026, 9:38 p.m. |
| NER | Named-entity recognition | batch_69de312df37081909f45ce3e219af5dc |
completed | April 14, 2026, 12:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fcf7d863ac819085bf5cd76cb2e8dd |
completed | May 7, 2026, 8:36 p.m. |
Created at: April 9, 2026, 10:20 p.m.