Triple
T14624536
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chennai Suburban Railway |
E343310
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object | Chennai Beach railway station |
E336759
|
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 Beach railway station | Statement: [Chennai Suburban Railway, terminus, Chennai Beach railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chennai Beach railway station Context triple: [Chennai Suburban Railway, terminus, Chennai Beach railway station]
-
A.
Chennai Park Town railway station
Chennai Park Town railway station is a suburban railway station in central Chennai, India, serving as a key commuter hub near major civic and commercial areas.
-
B.
Chennai Egmore railway station
Chennai Egmore railway station is one of the major railway terminals in Chennai, India, serving as a key hub for regional and long-distance trains, especially to southern Tamil Nadu.
-
C.
Beach railway station, Chennai
chosen
Beach railway station, Chennai is a major suburban railway terminus in Chennai, India, serving as a key hub for local commuter rail services along the city’s coastline.
-
D.
Chidambaram railway station
Chidambaram railway station is a regional rail hub in Tamil Nadu, India, serving the temple town of Chidambaram on the Chennai–Tiruchirappalli main line.
-
E.
Chennai Beach railway yard
Chennai Beach railway yard is a major railway facility in Chennai used for stabling, maintaining, and managing suburban and other train operations near the Chennai Beach station.
- 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_69fda92a6b9c8190bdb220444cfbe34a |
completed | May 8, 2026, 9:13 a.m. |
Created at: April 10, 2026, 1:26 a.m.