Triple
T1290379
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Positive Train Control |
E27532
|
entity |
| Predicate | abbreviation |
P43
|
FINISHED |
| Object | PTC |
E27532
|
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: PTC | Statement: [Positive Train Control, abbreviation, PTC]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: PTC Context triple: [Positive Train Control, abbreviation, PTC]
-
A.
PTC
chosen
PTC is an advanced safety system used on railroads to automatically prevent train collisions, overspeed derailments, and other dangerous movements.
-
B.
PTP
PTP is a network-based time synchronization protocol defined by the IEEE 1588 standard that enables highly precise clock alignment across distributed systems.
-
C.
PCT
PCT is an international patent law treaty that streamlines the process of seeking patent protection for inventions in multiple countries through a single application.
-
D.
PCT
The PCT is a long-distance hiking and equestrian trail that spans over 2,600 miles along the U.S. West Coast from Mexico to Canada through California, Oregon, and Washington.
-
E.
PRTC
PRTC is a public transit agency serving Northern Virginia with commuter and local bus services.
- 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_69a496d4ec448190ad653b2590c46711 |
completed | March 1, 2026, 7:43 p.m. |
| NER | Named-entity recognition | batch_69a4c0d6af908190ade9c481cc6f0ad8 |
completed | March 1, 2026, 10:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acacbf0cf48190937f620900b08d3f |
completed | March 7, 2026, 10:54 p.m. |
Created at: March 1, 2026, 7:51 p.m.