Triple
T6255104
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mattapan Line |
E140142
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object | Valley Road station |
E126815
|
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: Valley Road station | Statement: [Mattapan Line, hasStation, Valley Road station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Valley Road station Context triple: [Mattapan Line, hasStation, Valley Road station]
-
A.
Valley Road station
chosen
Valley Road station is a small light rail stop on the MBTA's Mattapan trolley line in Milton, Massachusetts.
-
B.
Pingree Road station
Pingree Road station is a Metra commuter rail stop serving the city of Crystal Lake in McHenry County, Illinois.
-
C.
Parker Road Station
Parker Road Station is a major Dallas Area Rapid Transit (DART) light rail terminus and park-and-ride facility serving the northern suburbs of the Dallas–Fort Worth metroplex.
-
D.
Avenue Road station
Avenue Road station was the original name of Toronto’s Museum subway station on Line 1 Yonge–University.
-
E.
Naylor Road station
Naylor Road station is a Washington Metro rapid transit stop in Prince George's County, Maryland, serving the Green Line in the southeastern suburbs of Washington, D.C.
- 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_69c008b4858c819095b0199114a9a87b |
completed | March 22, 2026, 3:20 p.m. |
| NER | Named-entity recognition | batch_69c06363d6008190bf05e003b1f74497 |
completed | March 22, 2026, 9:47 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c603ea4b64819098abfe83fc5003aa |
completed | March 27, 2026, 4:13 a.m. |
Created at: March 22, 2026, 4:24 p.m.