Triple
T3877240
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Wayne Junction station |
E92531
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object | Chestnut Hill West Line |
E28964
|
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: Chestnut Hill West Line | Statement: [Wayne Junction station, serves, Chestnut Hill West Line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chestnut Hill West Line Context triple: [Wayne Junction station, serves, Chestnut Hill West Line]
-
A.
Chestnut Hill West Line
chosen
The Chestnut Hill West Line is a commuter rail service in the Philadelphia area that connects Center City with the Chestnut Hill neighborhood.
-
B.
Chestnut Hill East Line
Chestnut Hill East Line is a commuter rail service in the Philadelphia area operated as part of SEPTA’s Regional Rail network.
-
C.
Lowell Line
The Lowell Line is a Massachusetts Bay Transportation Authority commuter rail route that runs between Boston’s North Station and the city of Lowell, serving communities in the Merrimack Valley.
-
D.
Fairmount Line
The Fairmount Line is a commuter rail service in the Boston area that connects South Station with neighborhoods in Dorchester, Mattapan, and Hyde Park.
-
E.
Mattapan Line
The Mattapan Line is a light rail trolley service in Boston, Massachusetts, operating as part of the MBTA's Red Line system between Ashmont and Mattapan.
- 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_69aed967448c819086c4b358d37b25aa |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aeec719c148190a731773ac262221b |
completed | March 9, 2026, 3:51 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b51c87214881908e03f5c770c58713 |
completed | March 14, 2026, 8:29 a.m. |
Created at: March 9, 2026, 3:20 p.m.