Triple
T1058806
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Blue Line (Washington Metro) |
E22857
|
entity |
| Predicate | formerWesternTerminus |
P4246
|
FINISHED |
| Object |
National Airport station
National Airport station is a Washington Metro rapid transit stop serving Ronald Reagan Washington National Airport in Arlington, Virginia.
|
E147506
|
NE FINISHED |
How this triple was built (4 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: National Airport station | Statement: [Blue Line (Washington Metro), formerWesternTerminus, National Airport station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: National Airport station Context triple: [Blue Line (Washington Metro), formerWesternTerminus, National Airport station]
-
A.
Washington station
Washington station is a major rapid transit stop on Chicago's downtown Loop, serving as a key hub in the city's 'L' train system.
-
B.
Arlington station
Arlington station is an underground light rail stop on Boston's MBTA Green Line located near the Back Bay and Boston Public Garden.
-
C.
Dulles International Airport station
Dulles International Airport station is a Washington Metro rail station on the Silver Line that provides direct transit access to Washington Dulles International Airport.
-
D.
Convention Center Station
Convention Center Station is a public transit stop serving the area around the Kay Bailey Hutchison Convention Center in Dallas, Texas.
-
E.
Southeast station
Southeast station is a Metro-North Railroad commuter rail stop in the town of Southeast, New York, serving the Harlem Line.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: National Airport station Triple: [Blue Line (Washington Metro), formerWesternTerminus, National Airport station]
Generated description
National Airport station is a Washington Metro rapid transit stop serving Ronald Reagan Washington National Airport in Arlington, Virginia.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: National Airport station Target entity description: National Airport station is a Washington Metro rapid transit stop serving Ronald Reagan Washington National Airport in Arlington, Virginia.
-
A.
Washington station
Washington station is a major rapid transit stop on Chicago's downtown Loop, serving as a key hub in the city's 'L' train system.
-
B.
Arlington station
Arlington station is an underground light rail stop on Boston's MBTA Green Line located near the Back Bay and Boston Public Garden.
-
C.
Dulles International Airport station
Dulles International Airport station is a Washington Metro rail station on the Silver Line that provides direct transit access to Washington Dulles International Airport.
-
D.
Convention Center Station
Convention Center Station is a public transit stop serving the area around the Kay Bailey Hutchison Convention Center in Dallas, Texas.
-
E.
Southeast station
Southeast station is a Metro-North Railroad commuter rail stop in the town of Southeast, New York, serving the Harlem Line.
- F. None of above. chosen
Provenance (5 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_69a493dada0481909c43649f9843ea91 |
completed | March 1, 2026, 7:30 p.m. |
| NER | Named-entity recognition | batch_69a4b8dc9e8c819099fbb192bcf80615 |
completed | March 1, 2026, 10:08 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69acacaafe5c8190968cd74e59ceaa53 |
completed | March 7, 2026, 10:54 p.m. |
| NEDg | Description generation | batch_69acad8fa4288190b5ae445f83e41314 |
completed | March 7, 2026, 10:58 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69acade7bce48190b790e676b3f9f191 |
completed | March 7, 2026, 10:59 p.m. |
Created at: March 1, 2026, 7:42 p.m.