Triple
T7795957
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Coimbatore North Junction |
E180297
|
entity |
| Predicate | region |
P40
|
FINISHED |
| Object | Southern Railway region |
E326576
|
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: Southern Railway region | Statement: [Coimbatore North Junction, region, Southern Railway region]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Southern Railway region Context triple: [Coimbatore North Junction, region, Southern Railway region]
-
A.
Southern Region of British Railways
The Southern Region of British Railways was one of the post-nationalisation operating regions in the south of England, known for its dense commuter network and extensive electrified lines serving London and the surrounding areas.
-
B.
Southern Railway zone
chosen
The Southern Railway zone is one of the major zones of Indian Railways, overseeing extensive rail operations across southern India including key hubs like Tiruchirappalli.
-
C.
Northern Railway
Northern Railway is a major rail network in Russia that serves the northern regions, including the Yamalo-Nenets Autonomous Okrug, supporting both passenger and freight transportation in harsh Arctic conditions.
-
D.
Northern Railway
Northern Railway is one of the largest zones of Indian Railways, overseeing extensive rail operations and infrastructure across northern India.
-
E.
Southern Railway (U.S.)
Southern Railway (U.S.) was a major American Class I railroad that operated primarily in the southeastern United States before becoming a key predecessor of Norfolk Southern Railway.
- 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_69ca827d22208190b4dc5aa680edcf5d |
completed | March 30, 2026, 2:02 p.m. |
| NER | Named-entity recognition | batch_69cae94c41408190b73e37c0ff2c6628 |
completed | March 30, 2026, 9:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cb13f866ac8190bca2b8477b62d7e4 |
completed | March 31, 2026, 12:23 a.m. |
Created at: March 30, 2026, 4:31 p.m.