Triple
T17859185
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Washington Metro Silver Line |
E446020
|
entity |
| Predicate | phase2ExtensionTo |
P97148
|
FINISHED |
| Object | Ashburn station |
—
|
NE NERFINISHED |
How this triple was built (3 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: Ashburn station | Statement: [Washington Metro Silver Line, phase2ExtensionTo, Ashburn station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ashburn station Context triple: [Washington Metro Silver Line, phase2ExtensionTo, Ashburn station]
-
A.
Ashburn station
chosen
Ashburn station is a Washington Metro Silver Line terminus located in Loudoun County, Virginia, serving as a major commuter hub for the outer suburbs of the Washington, D.C. metropolitan area.
-
B.
Ashburn station
Ashburn station is a commuter rail stop on Metra’s SouthWest Service line serving the Ashburn neighborhood on Chicago’s Southwest Side.
-
C.
Herndon station
Herndon station is a Washington Metro rail station in Herndon, Virginia, on the Silver Line serving the Dulles Technology Corridor and surrounding suburbs.
-
D.
Lorton station
Lorton station is the northern terminus of Amtrak’s Auto Train service, located in Lorton, Virginia.
-
E.
McLean station
McLean station is a Washington Metro rapid transit stop in McLean, Virginia, providing service to the nearby Tysons business district.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: phase2ExtensionTo Context triple: [Washington Metro Silver Line, phase2ExtensionTo, Ashburn station]
-
A.
phase2Enhancement
Indicates that an entity is involved in or associated with the second phase of an enhancement or improvement process.
-
B.
phase2Terminus
chosen
Indicates that an entity serves as the endpoint or final state of a second phase in a multi-phase process or sequence.
-
C.
phase2Purpose
Indicates the specific intended goal, function, or outcome associated with the second phase of a process or project.
-
D.
phaseTwoRoute
Indicates a route or path that is specifically designated for use during the second phase of a multi-phase process or operation.
-
E.
secondPhase
Indicates that an entity is in, or has progressed to, the second phase or stage of a multi-phase process or sequence.
- F. None of above.
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_69d8b9f26f18819089c9e43250bee6ae |
completed | April 10, 2026, 8:50 a.m. |
| NER | Named-entity recognition | batch_69e4978e68ec8190a4306f7b7bb058d7 |
completed | April 19, 2026, 8:51 a.m. |
| PD | Predicate disambiguation | batch_69e3d8e6d2e88190ad9ef9f8a99f13e6 |
completed | April 18, 2026, 7:17 p.m. |
Created at: April 10, 2026, 10:17 a.m.