Triple
T1274658
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Keystone Corridor |
E15785
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Exton Station
Exton Station is a commuter rail station in Exton, Pennsylvania, serving Amtrak and SEPTA trains along a major east–west rail corridor.
|
E150581
|
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: Exton Station | Statement: [Keystone Corridor, hasStation, Exton Station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Exton Station Context triple: [Keystone Corridor, hasStation, Exton Station]
-
A.
Cheverly station
Cheverly station is a Washington Metro rapid transit stop in Cheverly, Maryland, serving the Orange Line in the system's eastern suburbs.
-
B.
Eastwick station
Eastwick station is a regional rail stop in Philadelphia, Pennsylvania, serving SEPTA’s Airport Line with access to nearby neighborhoods and Philadelphia International Airport.
-
C.
Clarendon station
Clarendon station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Clarendon neighborhood on the Orange Line.
-
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.
Deanwood station
Deanwood station is an elevated Washington Metro station in Northeast Washington, D.C., serving the Deanwood neighborhood on the system’s Orange Line.
- 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: Exton Station Triple: [Keystone Corridor, hasStation, Exton Station]
Generated description
Exton Station is a commuter rail station in Exton, Pennsylvania, serving Amtrak and SEPTA trains along a major east–west rail corridor.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Exton Station Target entity description: Exton Station is a commuter rail station in Exton, Pennsylvania, serving Amtrak and SEPTA trains along a major east–west rail corridor.
-
A.
Cheverly station
Cheverly station is a Washington Metro rapid transit stop in Cheverly, Maryland, serving the Orange Line in the system's eastern suburbs.
-
B.
Eastwick station
Eastwick station is a regional rail stop in Philadelphia, Pennsylvania, serving SEPTA’s Airport Line with access to nearby neighborhoods and Philadelphia International Airport.
-
C.
Clarendon station
Clarendon station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Clarendon neighborhood on the Orange Line.
-
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.
Deanwood station
Deanwood station is an elevated Washington Metro station in Northeast Washington, D.C., serving the Deanwood neighborhood on the system’s Orange Line.
- 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_69acbae45da48190832dd8d74fdb217a |
completed | March 7, 2026, 11:55 p.m. |
| NEDg | Description generation | batch_69acbb53e93c819091b111c86090b843 |
completed | March 7, 2026, 11:57 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69acbbfee7e88190b216beef1c862f64 |
completed | March 7, 2026, 11:59 p.m. |
Created at: March 1, 2026, 7:50 p.m.