Triple
T14305739
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Morgan Park, Chicago |
E354689
|
entity |
| Predicate | hasMetraStation |
P726
|
FINISHED |
| Object |
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.
|
E1090888
|
NE FINISHED |
How this triple was built (5 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: Morgan Park station | Statement: [Morgan Park, Chicago, hasMetraStation, Morgan Park station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Morgan Park station Context triple: [Morgan Park, Chicago, hasMetraStation, Morgan Park station]
-
A.
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.
-
B.
Chicago (Brown Line) station
Chicago (Brown Line) station is an 'L' rapid transit stop in Chicago, Illinois, serving the CTA's Brown Line trains.
-
C.
Berwyn station (Chicago "L")
Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
-
D.
Chicago/Franklin station (Chicago "L")
Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
-
E.
Logan Square station
Logan Square station is a Chicago Transit Authority Blue Line rapid transit station located in the Logan Square neighborhood of Chicago.
- 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: Morgan Park station Triple: [Morgan Park, Chicago, hasMetraStation, Morgan Park station]
Generated description
Morgan Park station is a Metra commuter rail stop serving Chicago’s Morgan Park neighborhood on the city’s Far South Side.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Morgan Park station Target entity description: Morgan Park station is a Metra commuter rail stop serving Chicago’s Morgan Park neighborhood on the city’s Far South Side.
-
A.
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.
-
B.
Chicago (Brown Line) station
Chicago (Brown Line) station is an 'L' rapid transit stop in Chicago, Illinois, serving the CTA's Brown Line trains.
-
C.
Berwyn station (Chicago "L")
Berwyn station is a Chicago "L" rapid transit stop on the Red Line located in the Edgewater neighborhood on the city's North Side.
-
D.
Chicago/Franklin station (Chicago "L")
Chicago/Franklin station was a former elevated rapid transit stop on Chicago’s "L" system that operated on the North Side main line near the city’s River North area.
-
E.
Logan Square station
Logan Square station is a Chicago Transit Authority Blue Line rapid transit station located in the Logan Square neighborhood of Chicago.
- F. None of above. chosen
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: hasMetraStation Context triple: [Morgan Park, Chicago, hasMetraStation, Morgan Park station]
-
A.
hasMetroTerminus
Indicates that one location serves as the terminal (end) station of a metro line for another location.
-
B.
hasMetroStations
Indicates that a place or area is served by one or more metro (subway) stations.
-
C.
hasMetroLine
Indicates that a location or area is served by, or connected to, a specific metro (subway) line.
-
D.
hasRailStation
chosen
Indicates that one entity possesses, contains, or is served by a rail station.
-
E.
hasSubwayStationEntrance
Indicates that one entity serves as an entrance or access point to a subway station associated with another entity.
- F. None of above.
Provenance (6 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_69d8278ed42c8190b9f882dcce611347 |
completed | April 9, 2026, 10:26 p.m. |
| NER | Named-entity recognition | batch_69de85afabe48190926d6098047f4bcf |
completed | April 14, 2026, 6:21 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69fd3d2c32648190bc8bb26d57df57f5 |
completed | May 8, 2026, 1:32 a.m. |
| NEDg | Description generation | batch_69fd3e3d3e2c81909945253c26e19cee |
completed | May 8, 2026, 1:37 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69fd3ebe4f008190aec72ed7e23c4cd4 |
completed | May 8, 2026, 1:39 a.m. |
| PD | Predicate disambiguation | batch_69de2a8f81f08190af737e1654847aa6 |
completed | April 14, 2026, 11:52 a.m. |
Created at: April 10, 2026, 1:12 a.m.