Triple
T1296725
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Automatic Train Control |
E27668
|
entity |
| Predicate | relatedTo |
P37
|
FINISHED |
| Object | positive train control |
E4790
|
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: positive train control | Statement: [Automatic Train Control, relatedTo, positive train control]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: positive train control Context triple: [Automatic Train Control, relatedTo, positive train control]
-
A.
Positive Train Control
chosen
Positive Train Control is an advanced, federally mandated train safety technology designed to automatically prevent collisions, overspeed derailments, and other dangerous train movements.
-
B.
Automatic Train Control
Automatic Train Control is a railway safety and control system that automates train operations such as speed regulation and braking to prevent collisions and ensure safe, efficient train movement.
-
C.
TPWS
TPWS (Train Protection & Warning System) is a UK railway safety system that automatically applies a train’s brakes to prevent collisions and overspeeding, particularly at signals and speed restrictions.
-
D.
5 train
The 5 train is a New York City Subway service that runs primarily along the IRT Lexington Avenue Line in Manhattan and the Eastern Parkway and Dyre Avenue lines in the Bronx, providing both local and express service.
-
E.
Advanced Passenger Train
The Advanced Passenger Train was a pioneering British high-speed tilting train developed by British Rail in the 1970s and 1980s to enable faster travel on existing curving tracks.
- 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_69a496d6682881909ba658f1c1e0e2b0 |
completed | March 1, 2026, 7:43 p.m. |
| NER | Named-entity recognition | batch_69a4c0f591ec819084f01f518c332880 |
completed | March 1, 2026, 10:43 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acb300d3a0819081a9d19ea1fbdfe2 |
completed | March 7, 2026, 11:21 p.m. |
Created at: March 1, 2026, 7:51 p.m.