Triple
T15582624
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad freight cars |
E374536
|
entity |
| Predicate | coupling |
P3984
|
FINISHED |
| Object | Janney coupler |
E202239
|
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: Janney coupler | Statement: [Pennsylvania Railroad freight cars, coupling, Janney coupler]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Janney coupler Context triple: [Pennsylvania Railroad freight cars, coupling, Janney coupler]
-
A.
Janney coupler
chosen
The Janney coupler is a widely used automatic railway coupling system designed to securely connect train cars while improving safety and ease of operation compared to earlier link-and-pin couplers.
-
B.
Scharfenberg coupler
The Scharfenberg coupler is an automatic railway coupling system widely used on modern passenger trains to quickly connect and disconnect cars while integrating mechanical, pneumatic, and electrical links.
-
C.
Dellner automatic couplers
Dellner automatic couplers are railway vehicle coupling systems designed to automatically connect and disconnect train units, commonly used on modern multiple-unit fleets such as the Bombardier Voyager family.
-
D.
Shibata-type coupler
The Shibata-type coupler is a Japanese-designed automatic railway coupling system widely used on electric multiple units for reliable and efficient train connection.
-
E.
Harold Interlocking
Harold Interlocking is a major and complex railroad junction in Queens, New York, that serves as a key convergence point for Long Island Rail Road and Amtrak trains heading into and out of Penn Station.
- 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_69d85ccd575081908909b71a3f3e3a61 |
completed | April 10, 2026, 2:13 a.m. |
| NER | Named-entity recognition | batch_69e04e45ee3c8190a6aee06a5805ca39 |
completed | April 16, 2026, 2:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ff4c4f71e48190a15eb0a2138f083f |
completed | May 9, 2026, 3:01 p.m. |
Created at: April 10, 2026, 4:11 a.m.