Triple
T17829952
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (Chennai Metro) |
E445224
|
entity |
| Predicate | alsoKnownAs |
P39
|
FINISHED |
| Object | Line 2 (Chennai Metro) |
—
|
NE NERFINISHED |
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: Line 2 (Chennai Metro) | Statement: [Green Line (Chennai Metro), alsoKnownAs, Line 2 (Chennai Metro)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Line 2 (Chennai Metro) Context triple: [Green Line (Chennai Metro), alsoKnownAs, Line 2 (Chennai Metro)]
-
A.
Line 2–Green
Line 2–Green is a major rapid transit line of the São Paulo Metro system, serving key central and eastern districts of São Paulo, Brazil.
-
B.
Metro Line 2
Metro Line 2 is one of the main lines of the Mexico City Metro system, running north–south through key residential and commercial areas and serving as a major transit corridor for daily commuters.
-
C.
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.
-
D.
Chennai Beach–Tambaram–Chengalpattu line
The Chennai Beach–Tambaram–Chengalpattu line is a key suburban railway corridor in the Chennai metropolitan area, carrying heavy commuter traffic between the city center and its southern suburbs.
-
E.
Línea 2
Línea 2 is a metro line that forms part of an urban rapid transit network and connects with other lines, including Línea 6, at designated interchange stations.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d8b9f1a6d881909f024bc603111cdb |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e48917c4d88190b919a4b75aed011c |
completed | April 19, 2026, 7:49 a.m. |
Created at: April 10, 2026, 10:15 a.m.