Triple
T7545554
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Mattapan station |
E178391
|
entity |
| Predicate | isTerminusDirection |
P3384
|
FINISHED |
| Object | western terminus of Ashmont–Mattapan High-Speed Line |
—
|
LITERAL 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: western terminus of Ashmont–Mattapan High-Speed Line | Statement: [Mattapan station, isTerminusDirection, western terminus of Ashmont–Mattapan High-Speed Line]
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: isTerminusDirection Context triple: [Mattapan station, isTerminusDirection, western terminus of Ashmont–Mattapan High-Speed Line]
-
A.
terminusDirection
Indicates the directional orientation or endpoint direction associated with a route, path, or line.
-
B.
lineTerminusDirection
chosen
Indicates the directional orientation or bearing at which a line segment or route terminates at its endpoint.
-
C.
terminusType
Indicates the specific kind or role of an endpoint or terminal within a route, network, or process.
-
D.
hasTerminusIn
Indicates that something (such as a route, line, or path) ends or has its final stopping point at a specified location.
-
E.
formerTerminusFor
Indicates that a location once served as the endpoint or final stop of a route, line, or service, but no longer holds that status.
- F. None of above.
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_69c69f2cbe08819088f9eb0c03ef529b |
completed | March 27, 2026, 3:15 p.m. |
| NER | Named-entity recognition | batch_69c6f898069881909fa8f9c885c4565b |
completed | March 27, 2026, 9:37 p.m. |
| PD | Predicate disambiguation | batch_69c6f4daad6c8190af2b8ae88d2c8cb7 |
completed | March 27, 2026, 9:21 p.m. |
Created at: March 27, 2026, 3:48 p.m.