Triple
T10511139
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Washington station (CTA Blue Line) |
E247916
|
entity |
| Predicate | locatedOn |
P40
|
FINISHED |
| Object | Dearborn Subway alignment |
E92000
|
NE FINISHED |
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: Dearborn Subway alignment | Statement: [Washington station (CTA Blue Line), locatedOn, Dearborn Subway alignment]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dearborn Subway alignment Context triple: [Washington station (CTA Blue Line), locatedOn, Dearborn Subway alignment]
-
A.
Dearborn Street subway
chosen
The Dearborn Street subway is an underground rapid transit tunnel in downtown Chicago that carries Chicago Transit Authority trains beneath Dearborn Street.
-
B.
Red Line Northwest Extension corridor
The Red Line Northwest Extension corridor is a planned expansion route of Boston's MBTA Red Line intended to extend rapid transit service northwest from its current terminus.
-
C.
Purple Line light rail corridor
The Purple Line light rail corridor is a planned 16-mile east–west transit line in Maryland’s Washington, D.C. suburbs, intended to connect multiple Metro lines and key communities across Montgomery and Prince George’s counties.
-
D.
7 Subway Extension
The 7 Subway Extension is a New York City transit project that extended the IRT Flushing Line (7 train) westward to serve the Hudson Yards redevelopment area on Manhattan’s Far West Side.
-
E.
DART downtown transit corridor
The DART downtown transit corridor is a central light rail and bus route network running through downtown Dallas, Texas, that connects multiple DART stations and facilitates high-frequency urban transit.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (3 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_69d381c4aa948190942e1d803143fb0e |
completed | April 6, 2026, 9:49 a.m. |
| NER | Named-entity recognition | batch_69d509b542088190868531f84deaf9e4 |
completed | April 7, 2026, 1:42 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d8dcee1db081908c791867e2438d30 |
completed | April 10, 2026, 11:20 a.m. |
Created at: April 6, 2026, 12:27 p.m.