Triple

T1058819
Position Surface form Disambiguated ID Type / Status
Subject Blue Line (Washington Metro) E22857 entity
Predicate stationServed P6301 FINISHED
Object Arlington Cemetery station
Arlington Cemetery station is a Washington Metro rapid transit stop in Arlington, Virginia, providing access to Arlington National Cemetery and nearby memorials.
 E217527 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: Arlington Cemetery station | Statement: [Blue Line (Washington Metro), stationServed, Arlington Cemetery station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Arlington Cemetery station
Context triple: [Blue Line (Washington Metro), stationServed, Arlington Cemetery station]
  • A. Potomac Avenue station
    Potomac Avenue station is a Washington Metro rapid transit station in Washington, D.C., served by the Blue, Orange, and Silver Lines.
  • B. McPherson Square station
    McPherson Square station is a Washington Metro rapid transit station in downtown Washington, D.C., serving the area near the White House and major federal and commercial buildings.
  • C. Prince George's Plaza station
    Prince George's Plaza station is a Washington Metro rapid transit stop in Hyattsville, Maryland, serving the Green Line and the surrounding commercial and residential areas.
  • D. 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.
  • E. Braddock Road station
    Braddock Road station is a Washington Metro rapid transit station serving the Braddock Road area of Alexandria, Virginia.
  • 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: Arlington Cemetery station
Triple: [Blue Line (Washington Metro), stationServed, Arlington Cemetery station]
Generated description
Arlington Cemetery station is a Washington Metro rapid transit stop in Arlington, Virginia, providing access to Arlington National Cemetery and nearby memorials.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Arlington Cemetery station
Target entity description: Arlington Cemetery station is a Washington Metro rapid transit stop in Arlington, Virginia, providing access to Arlington National Cemetery and nearby memorials.
  • A. Potomac Avenue station
    Potomac Avenue station is a Washington Metro rapid transit station in Washington, D.C., served by the Blue, Orange, and Silver Lines.
  • B. McPherson Square station
    McPherson Square station is a Washington Metro rapid transit station in downtown Washington, D.C., serving the area near the White House and major federal and commercial buildings.
  • C. Prince George's Plaza station
    Prince George's Plaza station is a Washington Metro rapid transit stop in Hyattsville, Maryland, serving the Green Line and the surrounding commercial and residential areas.
  • D. 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.
  • E. Braddock Road station
    Braddock Road station is a Washington Metro rapid transit station serving the Braddock Road area of Alexandria, Virginia.
  • 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_69a4bb7320f88190a8428946541df157 completed March 1, 2026, 10:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69adf3a5cac081908d655e42a58a81c5 completed March 8, 2026, 10:09 p.m.
NEDg Description generation batch_69adf55207248190bd903c7faa3729e7 completed March 8, 2026, 10:16 p.m.
NED2 Entity disambiguation (via description) batch_69adf5e074088190b6b383fb93cd18d8 completed March 8, 2026, 10:19 p.m.
Created at: March 1, 2026, 7:42 p.m.