Triple
T27923627
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | BNSF San Bernardino Subdivision |
E706271
|
entity |
| Predicate | hasTrainControl |
P112656
|
FINISHED |
| Object | Positive Train Control (PTC) (implemented on BNSF main lines) |
—
|
NE NERFINISHED |
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: Positive Train Control (PTC) (implemented on BNSF main lines) | Statement: [BNSF San Bernardino Subdivision, hasTrainControl, Positive Train Control (PTC) (implemented on BNSF main lines)]
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasTrainControl Context triple: [BNSF San Bernardino Subdivision, hasTrainControl, Positive Train Control (PTC) (implemented on BNSF main lines)]
-
A.
hasAutomaticTrainControlCompatibility
Indicates that an entity is compatible with, or supports integration with, an automatic train control (ATC) system.
-
B.
hasAutomaticTrainControl
chosen
Indicates that an entity is equipped with or uses an automatic train control system for managing train operations.
-
C.
railwayControlledBy
Indicates that the operation, management, or authority over a railway is exercised by a specified controlling entity.
-
D.
hasLNGTrain
Indicates that something possesses or is equipped with an LNG (liquefied natural gas) processing or transport train as part of its facilities or infrastructure.
-
E.
hasRailMode
Indicates that an entity is associated with or supports transportation via rail-based modes (such as trains, trams, or subways).
- 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_69ef96b6cc808190aab19fb18b235f4b |
completed | April 27, 2026, 5:02 p.m. |
| NER | Named-entity recognition | batch_69fd44474ed48190ac372e4c88d762ed |
completed | May 8, 2026, 2:02 a.m. |
| PD | Predicate disambiguation | batch_69fd41ef28a48190a66959be5c964461 |
completed | May 8, 2026, 1:52 a.m. |
Created at: April 27, 2026, 6:58 p.m.