Triple
T3889521
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Potomac River tunnel |
E88024
|
entity |
| Predicate | partOf |
P40
|
FINISHED |
| Object | Washington Metro rail system |
E225
|
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: Washington Metro rail system | Statement: [Potomac River tunnel, partOf, Washington Metro rail system]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Washington Metro rail system Context triple: [Potomac River tunnel, partOf, Washington Metro rail system]
-
A.
Washington Metro
chosen
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
B.
Washington Metro Red Line
The Washington Metro Red Line is a major rapid transit route in the Washington, D.C. metropolitan area, running through key downtown and suburban corridors as part of the region’s primary subway system.
-
C.
Washington Metro Green Line
The Washington Metro Green Line is a rapid transit line in the Washington, D.C. metropolitan area that runs north–south through the city and into surrounding suburbs, including Prince George’s County, Maryland.
-
D.
Washington Metro Yellow Line
The Washington Metro Yellow Line is a rapid transit line in the Washington, D.C. metropolitan area that runs north–south through the city and into Virginia, serving key hubs including downtown Washington and Alexandria.
-
E.
Baltimore Metro SubwayLink
The Baltimore Metro SubwayLink is a rapid transit subway system serving Baltimore, Maryland, providing high-capacity rail service along a primary east–west corridor through the city and into surrounding areas.
- 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_69aed9466d548190939f5217a23ed4ac |
completed | March 9, 2026, 2:29 p.m. |
| NER | Named-entity recognition | batch_69aeecaee7148190ada451ccfc6582ee |
completed | March 9, 2026, 3:52 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b533788a70819089d028cee84a7e87 |
completed | March 14, 2026, 10:07 a.m. |
Created at: March 9, 2026, 3:21 p.m.