Triple

T1058836
Position Surface form Disambiguated ID Type / Status
Subject Blue Line (Washington Metro) E22857 entity
Predicate stationServed P6301 FINISHED
Object Morgan Boulevard station
Morgan Boulevard station is a Washington Metro rapid transit station in Prince George's County, Maryland, serving the nearby FedExField stadium and surrounding residential areas.
 E211097 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: Morgan Boulevard station | Statement: [Blue Line (Washington Metro), stationServed, Morgan Boulevard station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Morgan Boulevard station
Context triple: [Blue Line (Washington Metro), stationServed, Morgan Boulevard station]
  • A. Pattison Avenue station
    Pattison Avenue station is a subway station in Philadelphia that serves as the southern terminus of SEPTA’s Broad Street Line, providing access to the South Philadelphia Sports Complex.
  • B. Avenue Road station
    Avenue Road station was the original name of Toronto’s Museum subway station on Line 1 Yonge–University.
  • C. Crescent Street station
    Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
  • D. Central Avenue station
    Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
  • E. Eisenhower Avenue station
    Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
  • 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: Morgan Boulevard station
Triple: [Blue Line (Washington Metro), stationServed, Morgan Boulevard station]
Generated description
Morgan Boulevard station is a Washington Metro rapid transit station in Prince George's County, Maryland, serving the nearby FedExField stadium and surrounding residential areas.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Morgan Boulevard station
Target entity description: Morgan Boulevard station is a Washington Metro rapid transit station in Prince George's County, Maryland, serving the nearby FedExField stadium and surrounding residential areas.
  • A. Pattison Avenue station
    Pattison Avenue station is a subway station in Philadelphia that serves as the southern terminus of SEPTA’s Broad Street Line, providing access to the South Philadelphia Sports Complex.
  • B. Avenue Road station
    Avenue Road station was the original name of Toronto’s Museum subway station on Line 1 Yonge–University.
  • C. Crescent Street station
    Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
  • D. Central Avenue station
    Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
  • E. Eisenhower Avenue station
    Eisenhower Avenue station is a Washington Metro rapid transit stop serving the Yellow Line in Alexandria, Virginia, near the Eisenhower Avenue corridor and adjacent commercial and residential areas.
  • 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_69adeab2f888819093d2b3e49b105802 completed March 8, 2026, 9:31 p.m.
NEDg Description generation batch_69adeb330fe0819096ac927838b6ee2f completed March 8, 2026, 9:33 p.m.
NED2 Entity disambiguation (via description) batch_69adebb1d7748190b5cd33d163368eae completed March 8, 2026, 9:35 p.m.
Created at: March 1, 2026, 7:42 p.m.