Triple
T14433707
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | MBTA Red Line 1700 series cars |
E357899
|
entity |
| Predicate | usedOnBranch |
P2367
|
FINISHED |
| Object | Ashmont Branch |
E19136
|
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: Ashmont Branch | Statement: [MBTA Red Line 1700 series cars, usedOnBranch, Ashmont Branch]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ashmont Branch Context triple: [MBTA Red Line 1700 series cars, usedOnBranch, Ashmont Branch]
-
A.
Ashmont branch
chosen
The Ashmont branch is a southern segment of Boston's MBTA Red Line rapid transit system that serves neighborhoods including Dorchester and terminates at Ashmont station.
-
B.
Stoughton Branch
Stoughton Branch is a commuter rail branch line in Massachusetts that serves the town of Stoughton as part of the MBTA’s Providence/Stoughton Line.
-
C.
South Ward Branch
South Ward Branch is a neighborhood library facility serving the South Ward community as part of the Newark Public Library system in Newark, New Jersey.
-
D.
Ballard Branch
Ballard Branch is a neighborhood library of the Seattle Public Library system serving the Ballard area with books, media, and community services.
-
E.
Woodland Street Branch
Woodland Street Branch is a segment of Connecticut’s Park River, an urban waterway historically known for its partial burial and role in Hartford’s drainage and flood-control system.
- 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_69d8279402a88190821ffa39ae15bccf |
completed | April 9, 2026, 10:26 p.m. |
| NER | Named-entity recognition | batch_69de91471a648190adb7b283a6a85c3e |
completed | April 14, 2026, 7:11 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd5bd5b1d08190a89e6f004a94b361 |
completed | May 8, 2026, 3:43 a.m. |
Created at: April 10, 2026, 1:18 a.m.