Triple
T14624539
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chennai Suburban Railway |
E343310
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object | Chengalpattu Junction |
E1074735
|
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: Chengalpattu Junction | Statement: [Chennai Suburban Railway, terminus, Chengalpattu Junction]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chengalpattu Junction Context triple: [Chennai Suburban Railway, terminus, Chengalpattu Junction]
-
A.
Chengalpattu Junction
chosen
Chengalpattu Junction is a major railway junction in Tamil Nadu, India, serving as a key suburban and long-distance rail hub south of Chennai.
-
B.
Villupuram Junction
Villupuram Junction is a major railway junction in Tamil Nadu, India, serving as a key rail hub connecting multiple routes in the southern railway network.
-
C.
Erode Junction
Erode Junction is a major railway station and transport hub in the city of Erode, Tamil Nadu, serving as an important junction on the Southern Railway network of India.
-
D.
Arakkonam Junction
Arakkonam Junction is a major railway junction in Tamil Nadu, India, serving as a key rail hub connecting multiple important routes in the Southern Railway network.
-
E.
Coimbatore North Junction
Coimbatore North Junction is a railway station in Coimbatore, Tamil Nadu, serving as a secondary rail hub that connects the city to various regional and long-distance routes.
- 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_69d822dffc3c8190aa173b90761bffda |
completed | April 9, 2026, 10:06 p.m. |
| NER | Named-entity recognition | batch_69deb468acc4819083b7e818d5cec809 |
completed | April 14, 2026, 9:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fdd5d0514081908c2bdc4fb77b1a7a |
completed | May 8, 2026, 12:23 p.m. |
Created at: April 10, 2026, 1:26 a.m.