Triple
T1274659
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Keystone Corridor |
E15785
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Downingtown Station
Downingtown Station is a passenger rail station in Downingtown, Pennsylvania, served by Amtrak and SEPTA regional rail services.
|
E155484
|
NE FINISHED |
How this triple was built (4 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: Downingtown Station | Statement: [Keystone Corridor, hasStation, Downingtown Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Downingtown Station Context triple: [Keystone Corridor, hasStation, Downingtown Station]
-
A.
Jenkintown–Wyncote station
Jenkintown–Wyncote station is a major SEPTA Regional Rail hub in Montgomery County, Pennsylvania, serving multiple commuter lines north of Philadelphia.
-
B.
North Philadelphia station
North Philadelphia station is a transit stop in North Philadelphia, Pennsylvania, serving passengers on SEPTA’s Broad Street Line subway.
-
C.
Paoli Station
Paoli Station is a historic commuter and intercity rail station in Paoli, Pennsylvania, serving Amtrak and SEPTA trains on a major route between Philadelphia and Harrisburg.
-
D.
Glenside station
Glenside station is a SEPTA Regional Rail stop in Glenside, Pennsylvania, serving multiple commuter lines that connect the suburb with central Philadelphia and surrounding areas.
-
E.
Hatboro station
Hatboro station is a SEPTA Regional Rail stop in Hatboro, Pennsylvania, serving commuters on the Warminster Line to and from central Philadelphia.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Downingtown Station Triple: [Keystone Corridor, hasStation, Downingtown Station]
Generated description
Downingtown Station is a passenger rail station in Downingtown, Pennsylvania, served by Amtrak and SEPTA regional rail services.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Downingtown Station Target entity description: Downingtown Station is a passenger rail station in Downingtown, Pennsylvania, served by Amtrak and SEPTA regional rail services.
-
A.
Jenkintown–Wyncote station
Jenkintown–Wyncote station is a major SEPTA Regional Rail hub in Montgomery County, Pennsylvania, serving multiple commuter lines north of Philadelphia.
-
B.
North Philadelphia station
North Philadelphia station is a transit stop in North Philadelphia, Pennsylvania, serving passengers on SEPTA’s Broad Street Line subway.
-
C.
Paoli Station
Paoli Station is a historic commuter and intercity rail station in Paoli, Pennsylvania, serving Amtrak and SEPTA trains on a major route between Philadelphia and Harrisburg.
-
D.
Glenside station
Glenside station is a SEPTA Regional Rail stop in Glenside, Pennsylvania, serving multiple commuter lines that connect the suburb with central Philadelphia and surrounding areas.
-
E.
Hatboro station
Hatboro station is a SEPTA Regional Rail stop in Hatboro, Pennsylvania, serving commuters on the Warminster Line to and from central Philadelphia.
- F. None of above. chosen
Provenance (5 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_69a4935a94308190bb92555b79032824 |
completed | March 1, 2026, 7:28 p.m. |
| NER | Named-entity recognition | batch_69a4c06ee22081908141868b57596e35 |
completed | March 1, 2026, 10:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acce5dac54819097ff1fe72a19380d |
completed | March 8, 2026, 1:18 a.m. |
| NEDg | Description generation | batch_69accef1f294819093f463001ae8796b |
completed | March 8, 2026, 1:20 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69accf59a4e48190bfe11b97c4d33913 |
completed | March 8, 2026, 1:22 a.m. |
Created at: March 1, 2026, 7:50 p.m.