Triple
T6863597
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sandringham line |
E158340
|
entity |
| Predicate | formerOperator |
P179
|
FINISHED |
| Object | Metropolitan Transit Authority |
E21867
|
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: Metropolitan Transit Authority | Statement: [Sandringham line, formerOperator, Metropolitan Transit Authority]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metropolitan Transit Authority Context triple: [Sandringham line, formerOperator, Metropolitan Transit Authority]
-
A.
Metropolitan Transit Authority
chosen
The Metropolitan Transit Authority was a former public agency that operated and managed mass transit services in the Boston metropolitan area before being succeeded by the MBTA.
-
B.
Metropolitan Transportation Authority
The Metropolitan Transportation Authority is the public agency responsible for operating and overseeing much of the mass transit and commuter rail systems in the New York City metropolitan area.
-
C.
Triangle Transit Authority
Triangle Transit Authority was the former name of GoTriangle, the regional public transit agency serving North Carolina’s Research Triangle area.
-
D.
Capital Metropolitan Transportation Authority
Capital Metropolitan Transportation Authority is the public transit agency that operates bus, rail, and paratransit services throughout the Austin, Texas region.
-
E.
Autoritat del Transport Metropolità
Autoritat del Transport Metropolità is the public consortium that plans, coordinates, and oversees metropolitan public transport services in the Barcelona area.
- 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_69c68830cdbc8190a8301c7a9d9f651a |
completed | March 27, 2026, 1:37 p.m. |
| NER | Named-entity recognition | batch_69c6d8897cf48190a2f688d21f1f6c1a |
completed | March 27, 2026, 7:20 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c7428b2fe88190ac1798922e2b9620 |
completed | March 28, 2026, 2:52 a.m. |
Created at: March 27, 2026, 2:21 p.m.