Triple
T8976669
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Union Station (Washington Metro) |
E214407
|
entity |
| Predicate | hasConnection |
P8776
|
FINISHED |
| Object | Virginia Railway Express |
E1371
|
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: Virginia Railway Express | Statement: [Union Station (Washington Metro), hasConnection, Virginia Railway Express]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Virginia Railway Express Context triple: [Union Station (Washington Metro), hasConnection, Virginia Railway Express]
-
A.
Virginia Railway Express
chosen
Virginia Railway Express is a commuter rail service that connects Northern Virginia suburbs with Washington, D.C., primarily serving daily work commuters.
-
B.
Southeast Corridor
The Southeast Corridor is a key passenger rail route in the southeastern United States served by Amtrak’s Carolinian train.
-
C.
VRE Manassas Line
The VRE Manassas Line is a Virginia Railway Express commuter rail route connecting Washington, D.C. with communities in Northern Virginia, including the city of Manassas.
-
D.
Washington–Baltimore rail corridor
The Washington–Baltimore rail corridor is a heavily traveled rail route linking the U.S. capital with Baltimore, used by both passenger and freight services and forming a key segment of the Northeast transportation network.
-
E.
Tri-Rail
Tri-Rail is a commuter rail system in South Florida that connects major cities and transportation hubs across the Miami, Fort Lauderdale, and West Palm Beach metropolitan area.
- 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_69ca839ea8b88190922c6a326ffcc0d3 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc6786c880819088393bb107a7364c |
completed | April 1, 2026, 12:32 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfc96aa46c81908b95a23fd2b4da57 |
completed | April 3, 2026, 2:06 p.m. |
Created at: March 30, 2026, 7:02 p.m.