Triple
T6743637
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line (MARTA) |
E154151
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | MARTA heavy rail vehicles |
E495099
|
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: MARTA heavy rail vehicles | Statement: [Green Line (MARTA), usesRollingStock, MARTA heavy rail vehicles]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: MARTA heavy rail vehicles Context triple: [Green Line (MARTA), usesRollingStock, MARTA heavy rail vehicles]
-
A.
MARTA heavy rail cars
chosen
MARTA heavy rail cars are electric multiple-unit subway trains used to provide rapid transit service on Atlanta’s Metropolitan Atlanta Rapid Transit Authority rail system.
-
B.
MARTA Streetcar
MARTA Streetcar is a modern streetcar transit service operating in Atlanta, Georgia, providing local rail connections through key downtown and nearby neighborhoods.
-
C.
MARTA
MARTA is the primary public transit system serving the Atlanta metropolitan area, operating buses and rapid transit rail lines across the region.
-
D.
O-Train
The O-Train is Ottawa’s urban rail transit system, providing light rail service across key corridors of Canada’s capital city.
-
E.
Bombardier Flexity trams
Bombardier Flexity trams are a family of modern, low-floor light rail vehicles designed for urban public transport systems worldwide.
- 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_69c6880d84d8819095d19de2295f26ac |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d1b3b1448190a94b4b64f01af14a |
completed | March 27, 2026, 6:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c70b11b828819084d5a21dde5f1f5b |
completed | March 27, 2026, 10:56 p.m. |
Created at: March 27, 2026, 2:10 p.m.