Triple
T6914997
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Washington/Wells station |
E160027
|
entity |
| Predicate | replacedStation |
P20874
|
FINISHED |
| Object |
Randolph/Wells station
Randolph/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served downtown passengers before being replaced by the nearby Washington/Wells station.
|
E160027
|
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: Randolph/Wells station | Statement: [Washington/Wells station, replacedStation, Randolph/Wells station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Randolph/Wells station Context triple: [Washington/Wells station, replacedStation, Randolph/Wells station]
-
A.
Sanford station
Sanford station is the Florida terminus of Amtrak’s Auto Train service, where passengers and their vehicles embark and disembark for the rail journey to and from Virginia.
-
B.
Winfield station
Winfield station is a commuter rail stop in Winfield, Illinois, served by Metra’s Union Pacific West Line in the Chicago metropolitan area.
-
C.
Lancaster Station
Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
-
D.
Washington/Wells station
Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
-
E.
Greenwood station
Greenwood station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Greenwood neighborhood of Wakefield, Massachusetts.
- 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: Randolph/Wells station Triple: [Washington/Wells station, replacedStation, Randolph/Wells station]
Generated description
Randolph/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served downtown passengers before being replaced by the nearby Washington/Wells station.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Randolph/Wells station Target entity description: Randolph/Wells station was a former elevated rapid transit stop on Chicago’s Loop ‘L’ that once served downtown passengers before being replaced by the nearby Washington/Wells station.
-
A.
Sanford station
Sanford station is the Florida terminus of Amtrak’s Auto Train service, where passengers and their vehicles embark and disembark for the rail journey to and from Virginia.
-
B.
Winfield station
Winfield station is a commuter rail stop in Winfield, Illinois, served by Metra’s Union Pacific West Line in the Chicago metropolitan area.
-
C.
Lancaster Station
Lancaster Station is an Amtrak passenger rail station in Lancaster, Pennsylvania, serving intercity and regional trains along the Keystone Corridor.
-
D.
Washington/Wells station
chosen
Washington/Wells station is an elevated Chicago 'L' train station in the Loop that serves multiple CTA lines, including the Orange Line.
-
E.
Greenwood station
Greenwood station is a Massachusetts Bay Transportation Authority commuter rail stop serving the Greenwood neighborhood of Wakefield, Massachusetts.
- F. None of above.
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_69c6883ab1008190a07129ff06f625d9 |
completed | March 27, 2026, 1:38 p.m. |
| NER | Named-entity recognition | batch_69c6d9dda4108190a79a7841b0658a4d |
completed | March 27, 2026, 7:26 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c75127b71c8190ac958a178795dcf7 |
completed | March 28, 2026, 3:55 a.m. |
| NEDg | Description generation | batch_69c751ebf4f48190bb206dd9c1d8bc7b |
completed | March 28, 2026, 3:58 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69c75264e65081908859551feaf1006c |
completed | March 28, 2026, 4 a.m. |
Created at: March 27, 2026, 2:26 p.m.