Triple
T22065848
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Pennsylvania Railroad tracks |
E545265
|
entity |
| Predicate | includesUrbanApproach |
P146480
|
FINISHED |
| Object | Union Station approaches in Washington, D.C. |
—
|
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: Union Station approaches in Washington, D.C. | Statement: [Pennsylvania Railroad tracks, includesUrbanApproach, Union Station approaches in Washington, D.C.]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Union Station approaches in Washington, D.C. Context triple: [Pennsylvania Railroad tracks, includesUrbanApproach, Union Station approaches in Washington, D.C.]
-
A.
Washington Metro at Union Station
Washington Metro at Union Station is a major rapid transit hub in Washington, D.C., connecting multiple Metro lines with Amtrak, commuter rail, and intercity bus services.
-
B.
Union Station (Washington Metro)
Union Station is a major Washington Metro station in Washington, D.C., serving as a key transit hub connected to the historic Union Station rail terminal and multiple local and regional transportation services.
-
C.
Crystal City station (Washington Metro)
Crystal City station (Washington Metro) is an underground rapid transit station in Arlington, Virginia, serving the Blue and Yellow Lines and providing access to the Crystal City business district near Reagan National Airport.
-
D.
Washington, D.C. rail gateway
chosen
The Washington, D.C. rail gateway is a major rail corridor and junction that channels passenger and freight trains into and through the Washington, D.C. metropolitan area.
-
E.
Washington, D.C. Metro station (fictionalized)
The fictionalized Washington, D.C. Metro station is a key setting in the TV series "House of Cards," most notably as the location of journalist Zoe Barnes's death.
- 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_69e11e344dfc81909b1d88a7221329c7 |
completed | April 16, 2026, 5:36 p.m. |
| NER | Named-entity recognition | batch_69f12883d2108190a6127783f8f635fc |
completed | April 28, 2026, 9:37 p.m. |
Created at: April 16, 2026, 8:27 p.m.