Triple
T676323
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Silver Line (Washington Metro) |
E13084
|
entity |
| Predicate | servesStation |
P839
|
FINISHED |
| Object |
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.
|
E144815
|
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: Dulles International Airport station | Statement: [Silver Line (Washington Metro), servesStation, Dulles International Airport station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Dulles International Airport station Context triple: [Silver Line (Washington Metro), servesStation, Dulles International Airport station]
-
A.
Pentagon City station
Pentagon City station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Pentagon City neighborhood and its adjacent shopping and office complexes.
-
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.
Dunn Loring–Merrifield station
Dunn Loring–Merrifield station is a Washington Metro rapid transit station in Fairfax County, Virginia, serving the Orange Line and the surrounding Dunn Loring and Merrifield communities.
-
D.
Ashburn station
Ashburn station is a Washington Metro Silver Line terminus located in Loudoun County, Virginia, serving as a major commuter hub for the outer suburbs of the Washington, D.C. metropolitan area.
-
E.
Landover station
Landover station is a Washington Metro rapid transit stop in Landover, Maryland, serving commuters on the system’s eastern side.
- 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: Dulles International Airport station Triple: [Silver Line (Washington Metro), servesStation, Dulles International Airport station]
Generated description
Dulles International Airport station is a Washington Metro rail station on the Silver Line that provides direct transit access to Washington Dulles International Airport.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Dulles International Airport station Target entity description: Dulles International Airport station is a Washington Metro rail station on the Silver Line that provides direct transit access to Washington Dulles International Airport.
-
A.
Pentagon City station
Pentagon City station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Pentagon City neighborhood and its adjacent shopping and office complexes.
-
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.
Dunn Loring–Merrifield station
Dunn Loring–Merrifield station is a Washington Metro rapid transit station in Fairfax County, Virginia, serving the Orange Line and the surrounding Dunn Loring and Merrifield communities.
-
D.
Ashburn station
Ashburn station is a Washington Metro Silver Line terminus located in Loudoun County, Virginia, serving as a major commuter hub for the outer suburbs of the Washington, D.C. metropolitan area.
-
E.
Landover station
Landover station is a Washington Metro rapid transit stop in Landover, Maryland, serving commuters on the system’s eastern side.
- 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_69a4933d3bf88190972041cd8cf143b9 |
completed | March 1, 2026, 7:27 p.m. |
| NER | Named-entity recognition | batch_69a4a04b2ae881908a5c23453bef8572 |
completed | March 1, 2026, 8:23 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69ac996309fc8190a177034f23807b2e |
completed | March 7, 2026, 9:32 p.m. |
| NEDg | Description generation | batch_69ac9a775230819092f738100573cc63 |
completed | March 7, 2026, 9:36 p.m. |
| NED2 | Entity disambiguation (via description) | batch_69ac9ad3bec48190be781ddceb7bc21e |
completed | March 7, 2026, 9:38 p.m. |
Created at: March 1, 2026, 7:36 p.m.