Triple
T7103130
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Thorndale, Pennsylvania |
E165507
|
entity |
| Predicate | servedBy |
P82
|
FINISHED |
| Object | Amtrak Keystone Corridor (nearby tracks) |
E171711
|
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: Amtrak Keystone Corridor (nearby tracks) | Statement: [Thorndale, Pennsylvania, servedBy, Amtrak Keystone Corridor (nearby tracks)]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Amtrak Keystone Corridor (nearby tracks) Context triple: [Thorndale, Pennsylvania, servedBy, Amtrak Keystone Corridor (nearby tracks)]
-
A.
Pennsylvania Railroad tracks
The Pennsylvania Railroad tracks are rail lines that were part of the extensive network operated by the historic Pennsylvania Railroad, once one of the largest and most influential railroads in the United States.
-
B.
Amtrak Northeast Corridor routes
Amtrak Northeast Corridor routes are the heavily traveled passenger rail lines connecting major cities from Boston through New York and Philadelphia to Washington, D.C., forming the busiest and most important rail corridor in the United States.
-
C.
Amtrak Empire Corridor
The Amtrak Empire Corridor is a major passenger rail route in New York State that connects New York City with Albany and other upstate cities along the Hudson River and beyond.
-
D.
Amtrak Philadelphia to Wilmington line
The Amtrak Philadelphia to Wilmington line is a key segment of the Northeast Corridor, carrying frequent intercity and commuter rail services between Philadelphia, Pennsylvania and Wilmington, Delaware.
-
E.
Amtrak Keystone Service
chosen
Amtrak Keystone Service is a passenger rail service operated by Amtrak that runs primarily between New York City and Harrisburg, Pennsylvania, providing frequent regional connections along the Keystone Corridor.
- 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_69c6887fcddc8190a5d58908f6dee590 |
completed | March 27, 2026, 1:39 p.m. |
| NER | Named-entity recognition | batch_69c6e58a0a2c819088e0c8874fb4491f |
completed | March 27, 2026, 8:16 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c79cad60788190bb2b17d1c3f8e1cc |
completed | March 28, 2026, 9:17 a.m. |
Created at: March 27, 2026, 2:42 p.m.