Triple
T17465069
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Western Avenue station (Metra) |
E425253
|
entity |
| Predicate | adjacentTo |
P224
|
FINISHED |
| Object | Metra Western Avenue Yard |
—
|
NE NERFINISHED |
How this triple was built (2 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 station (Metra), adjacentTo, 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 station (Metra), adjacentTo, Metra Western Avenue Yard]
-
A.
Metra Western Avenue Yard
chosen
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.
-
B.
LaSalle Street Station (Metra)
LaSalle Street Station (Metra) is a major commuter rail terminal in downtown Chicago serving Metra’s Rock Island District line and providing connections to the city’s rapid transit system.
-
C.
North Avenue Light Rail Yard
North Avenue Light Rail Yard is a major maintenance, storage, and operations facility serving Baltimore’s Light RailLink system.
-
D.
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.
-
E.
Ravenswood Metra station
Ravenswood Metra station is a commuter rail stop on Metra's Union Pacific North Line serving Chicago's Ravenswood neighborhood.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69d889dbc2e88190b18ea6115e819258 |
completed | April 10, 2026, 5:25 a.m. |
| NER | Named-entity recognition | batch_69e451a6c2e08190bca9de56ee2f5136 |
completed | April 19, 2026, 3:53 a.m. |
Created at: April 10, 2026, 5:47 a.m.