Triple
T143433
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | SEPTA Regional Rail |
E2901
|
entity |
| Predicate | serves |
P98
|
FINISHED |
| Object | Chester County, Pennsylvania |
E29791
|
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: Chester County, Pennsylvania | Statement: [SEPTA Regional Rail, serves, Chester County, Pennsylvania]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Chester County, Pennsylvania Context triple: [SEPTA Regional Rail, serves, Chester County, Pennsylvania]
-
A.
Chester County, Pennsylvania
chosen
Chester County, Pennsylvania is a suburban and semi-rural county in southeastern Pennsylvania known for its historic towns, scenic landscapes, and role as part of the greater Philadelphia metropolitan area.
-
B.
Bucks County, Pennsylvania
Bucks County, Pennsylvania is a suburban county in southeastern Pennsylvania known for its historic towns, scenic Delaware River landscapes, and role as part of the greater Philadelphia metropolitan area.
-
C.
Berks County, Pennsylvania
Berks County, Pennsylvania is a largely rural-suburban county in southeastern Pennsylvania centered around the city of Reading and known for its mix of agricultural land, industrial history, and outdoor recreation.
-
D.
Schuylkill County, Pennsylvania
Schuylkill County, Pennsylvania is a predominantly rural county in eastern Pennsylvania known historically for its anthracite coal mining and small industrial towns.
-
E.
Montgomery County, Pennsylvania
Montgomery County, Pennsylvania is a suburban county northwest of Philadelphia known for its Revolutionary War history, including the site of George Washington’s winter encampment at Valley Forge.
- 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_69a2521e35c08190b28e5c9f1e3c9b59 |
completed | Feb. 28, 2026, 2:25 a.m. |
| NER | Named-entity recognition | batch_69a257caf678819092e975d5167f9df4 |
completed | Feb. 28, 2026, 2:49 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a3836d16d081909d8046cf6a10d421 |
completed | March 1, 2026, 12:08 a.m. |
Created at: Feb. 28, 2026, 2:31 a.m.