Triple
T8087088
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Chester Transportation Center |
E188758
|
entity |
| Predicate | category |
P87
|
FINISHED |
| Object | SEPTA Regional Rail stations |
E2901
|
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: SEPTA Regional Rail stations | Statement: [Chester Transportation Center, category, SEPTA Regional Rail stations]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SEPTA Regional Rail stations Context triple: [Chester Transportation Center, category, SEPTA Regional Rail stations]
-
A.
SEPTA Regional Rail
chosen
SEPTA Regional Rail is a commuter rail network serving the Philadelphia metropolitan area, connecting the city with its suburbs and neighboring regions.
-
B.
Suburban Station (SEPTA)
Suburban Station (SEPTA) is a major underground regional rail hub in Center City Philadelphia that serves as one of SEPTA’s primary commuter rail terminals.
-
C.
SEPTA Regional Rail Manayunk station
SEPTA Regional Rail Manayunk station is a commuter rail stop in the Manayunk neighborhood of Philadelphia that provides regional rail service on SEPTA’s Manayunk/Norristown Line.
-
D.
SEPTA Highland station
SEPTA Highland station is a commuter rail stop on SEPTA's Chestnut Hill West Line serving the Highland neighborhood of Philadelphia, Pennsylvania.
-
E.
SEPTA Regional Rail Center City Commuter Tunnel
The SEPTA Regional Rail Center City Commuter Tunnel is an underground rail corridor in downtown Philadelphia that links multiple regional rail lines through several central stations to provide through-running commuter service beneath Center City.
- 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_69ca82b662e88190b9323daab8c28a21 |
completed | March 30, 2026, 2:03 p.m. |
| NER | Named-entity recognition | batch_69cb4162244481908ab1202a9974deaa |
completed | March 31, 2026, 3:37 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cc6406395c8190ad8db69c878ce9b8 |
completed | April 1, 2026, 12:17 a.m. |
Created at: March 30, 2026, 5:29 p.m.