Triple
T6683540
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Western Avenue (Milwaukee District) |
E152043
|
entity |
| Predicate | nearbyFacility |
P350
|
FINISHED |
| Object |
Metra Western Avenue Yard
Metra Western Avenue Yard is a major rail yard and maintenance facility in Chicago used for storing and servicing Metra commuter trains, particularly those on the Milwaukee District lines.
|
E612061
|
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: Metra Western Avenue Yard | Statement: [Western Avenue (Milwaukee District), nearbyFacility, Metra Western Avenue Yard]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Metra Western Avenue Yard Context triple: [Western Avenue (Milwaukee District), nearbyFacility, Metra Western Avenue Yard]
-
A.
North Avenue Light Rail Yard
North Avenue Light Rail Yard is a major maintenance, storage, and operations facility serving Baltimore’s Light RailLink system.
-
B.
207th Street Yard
The 207th Street Yard is a major New York City Subway maintenance and storage facility in Upper Manhattan that services and houses A line trains and other IND rolling stock.
-
C.
Barrington Metra station
Barrington Metra station is a commuter rail station in Barrington, Illinois, serving as a stop on Metra's Union Pacific Northwest Line connecting the suburb to downtown Chicago.
-
D.
Hanover Park Metra station
Hanover Park Metra station is a commuter rail station in Hanover Park, Illinois, serving Metra’s Milwaukee District/West Line between Chicago and its northwestern suburbs.
-
E.
Metra Rock Island District 35th Street station
Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
- 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: Metra Western Avenue Yard Triple: [Western Avenue (Milwaukee District), nearbyFacility, Metra Western Avenue Yard]
Generated description
Metra Western Avenue Yard is a major rail yard and maintenance facility in Chicago used for storing and servicing Metra commuter trains, particularly those on the Milwaukee District lines.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Metra Western Avenue Yard Target entity description: Metra Western Avenue Yard is a major rail yard and maintenance facility in Chicago used for storing and servicing Metra commuter trains, particularly those on the Milwaukee District lines.
-
A.
North Avenue Light Rail Yard
North Avenue Light Rail Yard is a major maintenance, storage, and operations facility serving Baltimore’s Light RailLink system.
-
B.
207th Street Yard
The 207th Street Yard is a major New York City Subway maintenance and storage facility in Upper Manhattan that services and houses A line trains and other IND rolling stock.
-
C.
Barrington Metra station
Barrington Metra station is a commuter rail station in Barrington, Illinois, serving as a stop on Metra's Union Pacific Northwest Line connecting the suburb to downtown Chicago.
-
D.
Hanover Park Metra station
Hanover Park Metra station is a commuter rail station in Hanover Park, Illinois, serving Metra’s Milwaukee District/West Line between Chicago and its northwestern suburbs.
-
E.
Metra Rock Island District 35th Street station
Metra Rock Island District 35th Street station is a commuter rail stop in Chicago serving the Rock Island District line, located near Guaranteed Rate Field and providing access to the surrounding Bronzeville and Bridgeport areas.
- 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_69c687f9977c819097e7f5ada4fe522e |
completed | March 27, 2026, 1:36 p.m. |
| NER | Named-entity recognition | batch_69c6b122df14819082068af37611b691 |
completed | March 27, 2026, 4:32 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69c6f7ae8f388190a3c78c89b7293804 |
completed | March 27, 2026, 9:33 p.m. |
| NEDg | Description generation | batch_69c6f9f7b4b08190b5c4dab67758af67 |
completed | March 27, 2026, 9:43 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69c6fac7c0e881909b4c2058beebda9f |
completed | March 27, 2026, 9:46 p.m. |
Created at: March 27, 2026, 2:04 p.m.