Triple
T1225176
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Blue Line (Washington Metro) |
E26310
|
entity |
| Predicate | usesTunnel |
P18707
|
FINISHED |
| Object | Potomac River crossing |
E88024
|
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: Potomac River crossing | Statement: [Blue Line (Washington Metro), usesTunnel, Potomac River crossing]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Potomac River crossing Context triple: [Blue Line (Washington Metro), usesTunnel, Potomac River crossing]
-
A.
Woodrow Wilson Bridge
The Woodrow Wilson Bridge is a major bascule highway bridge carrying the Capital Beltway (I-95/I-495) between Virginia and Maryland just south of Washington, D.C.
-
B.
Forth Road Bridge
The Forth Road Bridge is a major suspension bridge in eastern Scotland that carries road traffic across the Firth of Forth, linking Edinburgh to Fife.
-
C.
Susquehanna River bridge at Havre de Grace
The Susquehanna River bridge at Havre de Grace is a historic railroad crossing over the Susquehanna River in Maryland that played a key role in 19th-century rail travel along the Northeast Corridor.
-
D.
Potomac River tunnel
chosen
The Potomac River tunnel is an underwater rail tunnel in the Washington, D.C. area that carries Washington Metro trains beneath the Potomac River.
-
E.
Memorial Bridge
Memorial Bridge is a prominent ceremonial bridge spanning the Potomac River, symbolically linking Arlington National Cemetery with the Lincoln Memorial in Washington, D.C.
- 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_69a49484688c8190a1bf285eb396a8b6 |
completed | March 1, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69a4be382c4081909238c18b805352a7 |
completed | March 1, 2026, 10:31 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac832704c08190a1a73ebd90fa91b8 |
completed | March 7, 2026, 7:57 p.m. |
Created at: March 1, 2026, 7:47 p.m.