Triple
T1311280
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Metra Union Pacific West Line |
E27995
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object |
Ogilvie Transportation Center
Ogilvie Transportation Center is a major commuter rail terminal in downtown Chicago serving multiple Metra lines and connecting suburban riders to the city's central business district.
|
E156565
|
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: Ogilvie Transportation Center | Statement: [Metra Union Pacific West Line, terminus, Ogilvie Transportation Center]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ogilvie Transportation Center Context triple: [Metra Union Pacific West Line, terminus, Ogilvie Transportation Center]
-
A.
Arrott Transportation Center
Arrott Transportation Center is a major public transit hub in Philadelphia that serves as an important connection point for subway and bus routes in the city’s Frankford neighborhood.
-
B.
Aurora Transportation Center
Aurora Transportation Center is a major commuter rail and bus hub in Aurora, Illinois, serving as the western terminus for Metra’s BNSF Railway Line and a key regional transit center.
-
C.
Fern Rock Transportation Center
Fern Rock Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key subway, regional rail, and bus interchange in the SEPTA system.
-
D.
Gresham Central Transit Center
Gresham Central Transit Center is a major public transportation hub in Gresham, Oregon, serving as a key stop on the MAX Light Rail system and connecting multiple bus routes.
-
E.
Darby Transportation Center
Darby Transportation Center is a public transit hub in Darby, Pennsylvania, serving as a key interchange point for SEPTA trolley and bus services.
- 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: Ogilvie Transportation Center Triple: [Metra Union Pacific West Line, terminus, Ogilvie Transportation Center]
Generated description
Ogilvie Transportation Center is a major commuter rail terminal in downtown Chicago serving multiple Metra lines and connecting suburban riders to the city's central business district.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Ogilvie Transportation Center Target entity description: Ogilvie Transportation Center is a major commuter rail terminal in downtown Chicago serving multiple Metra lines and connecting suburban riders to the city's central business district.
-
A.
Arrott Transportation Center
Arrott Transportation Center is a major public transit hub in Philadelphia that serves as an important connection point for subway and bus routes in the city’s Frankford neighborhood.
-
B.
Aurora Transportation Center
Aurora Transportation Center is a major commuter rail and bus hub in Aurora, Illinois, serving as the western terminus for Metra’s BNSF Railway Line and a key regional transit center.
-
C.
Fern Rock Transportation Center
Fern Rock Transportation Center is a major multimodal transit hub in North Philadelphia that serves as a key subway, regional rail, and bus interchange in the SEPTA system.
-
D.
Gresham Central Transit Center
Gresham Central Transit Center is a major public transportation hub in Gresham, Oregon, serving as a key stop on the MAX Light Rail system and connecting multiple bus routes.
-
E.
Darby Transportation Center
Darby Transportation Center is a public transit hub in Darby, Pennsylvania, serving as a key interchange point for SEPTA trolley and bus services.
- 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_69a496d7d83481908f83085854e51328 |
completed | March 1, 2026, 7:43 p.m. |
| NER | Named-entity recognition | batch_69a4c1560f888190bdd9107b08395e0b |
completed | March 1, 2026, 10:44 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acce621a008190a0359eaaf3241e8b |
completed | March 8, 2026, 1:18 a.m. |
| NEDg | Description generation | batch_69accf141c3481909ae5ea849aee7604 |
completed | March 8, 2026, 1:21 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69accfb8acfc8190bba379d8bb114c29 |
completed | March 8, 2026, 1:24 a.m. |
Created at: March 1, 2026, 7:51 p.m.