Triple
T19439937
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Green Line West Branch |
E486321
|
entity |
| Predicate | hasStation |
P35
|
FINISHED |
| Object |
Oak Park station
Oak Park station is a Chicago 'L' rapid transit stop in Oak Park, Illinois, served by the Green Line.
|
E1377020
|
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: Oak Park station | Statement: [Green Line West Branch, hasStation, Oak Park station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Oak Park station Context triple: [Green Line West Branch, hasStation, Oak Park station]
-
A.
Oak Forest station
Oak Forest station is a commuter rail stop in Oak Forest, Illinois, serving Metra's Rock Island District line between Chicago and its southwestern suburbs.
-
B.
Lincoln Park station
Lincoln Park station is a commuter rail stop in Lincoln Park, New Jersey, served by NJ Transit trains on the Montclair-Boonton Line.
-
C.
River Grove station
River Grove station is a commuter rail stop in River Grove, Illinois, served by Metra’s North Central Service line in the Chicago metropolitan area.
-
D.
Morgan Park station
Morgan Park station is a Metra commuter rail stop serving Chicago’s Morgan Park neighborhood on the city’s Far South Side.
-
E.
Lake Forest station
Lake Forest station is a commuter rail stop in Lake Forest, Illinois, serving passengers on Metra’s Union Pacific North Line between Chicago and the northern suburbs.
- 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: Oak Park station Triple: [Green Line West Branch, hasStation, Oak Park station]
Generated description
Oak Park station is a Chicago 'L' rapid transit stop in Oak Park, Illinois, served by the Green Line.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Oak Park station Target entity description: Oak Park station is a Chicago 'L' rapid transit stop in Oak Park, Illinois, served by the Green Line.
-
A.
Oak Forest station
Oak Forest station is a commuter rail stop in Oak Forest, Illinois, serving Metra's Rock Island District line between Chicago and its southwestern suburbs.
-
B.
Lincoln Park station
Lincoln Park station is a commuter rail stop in Lincoln Park, New Jersey, served by NJ Transit trains on the Montclair-Boonton Line.
-
C.
River Grove station
River Grove station is a commuter rail stop in River Grove, Illinois, served by Metra’s North Central Service line in the Chicago metropolitan area.
-
D.
Morgan Park station
Morgan Park station is a Metra commuter rail stop serving Chicago’s Morgan Park neighborhood on the city’s Far South Side.
-
E.
Lake Forest station
Lake Forest station is a commuter rail stop in Lake Forest, Illinois, serving passengers on Metra’s Union Pacific North Line between Chicago and the northern suburbs.
- 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_69d8e8d7ad488190a3373045029b0f3b |
completed | April 10, 2026, 12:11 p.m. |
| NER | Named-entity recognition | batch_69e63364371081908e899c2a47af4e5d |
completed | April 20, 2026, 2:08 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_6a073b286ed48190885ae78139140362 |
completed | May 15, 2026, 3:26 p.m. |
| NEDg | Description generation | batch_6a073c29752c8190b9ba3b0ebf5e5dd5 |
completed | May 15, 2026, 3:30 p.m. |
| NED2 | Entity disambiguation (via description) | batch_6a073d25ba448190a62777b68d2f3136 |
completed | May 15, 2026, 3:35 p.m. |
Created at: April 10, 2026, 1:38 p.m.