Triple

T3224375
Position Surface form Disambiguated ID Type / Status
Subject Roxbury Crossing station E67587 entity
Predicate formerService P1294 FINISHED
Object Washington Street Elevated
Washington Street Elevated was a former elevated rapid transit line in Boston that once carried Orange Line trains along Washington Street through several neighborhoods.
E338777 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: Washington Street Elevated | Statement: [Roxbury Crossing station, formerService, Washington Street Elevated]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Washington Street Elevated
Context triple: [Roxbury Crossing station, formerService, Washington Street Elevated]
  • A. Kennedy Expressway
    The Kennedy Expressway is a major Chicago freeway that carries Interstate 90/94 traffic between downtown and the city's northwest side, including the route to O'Hare International Airport.
  • B. Eisenhower Expressway
    The Eisenhower Expressway is a major Chicago-area freeway (Interstate 290) that runs west from downtown Chicago, serving as a key commuter and transit corridor through the city's western suburbs.
  • C. Washington Boulevard
    Washington Boulevard is a major thoroughfare in Pasadena, California, forming part of the boundary of the historic Bungalow Heaven neighborhood.
  • D. Washington Boulevard
    Washington Boulevard is a major east–west thoroughfare in Los Angeles County that passes through numerous neighborhoods and commercial districts, including Arlington Heights.
  • E. Vine Street Expressway
    The Vine Street Expressway is a major limited-access highway in Philadelphia, Pennsylvania, that carries Interstate 676 through the city’s downtown.
  • 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: Washington Street Elevated
Triple: [Roxbury Crossing station, formerService, Washington Street Elevated]
Generated description
Washington Street Elevated was a former elevated rapid transit line in Boston that once carried Orange Line trains along Washington Street through several neighborhoods.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Washington Street Elevated
Target entity description: Washington Street Elevated was a former elevated rapid transit line in Boston that once carried Orange Line trains along Washington Street through several neighborhoods.
  • A. Kennedy Expressway
    The Kennedy Expressway is a major Chicago freeway that carries Interstate 90/94 traffic between downtown and the city's northwest side, including the route to O'Hare International Airport.
  • B. Eisenhower Expressway
    The Eisenhower Expressway is a major Chicago-area freeway (Interstate 290) that runs west from downtown Chicago, serving as a key commuter and transit corridor through the city's western suburbs.
  • C. Washington Boulevard
    Washington Boulevard is a major thoroughfare in Pasadena, California, forming part of the boundary of the historic Bungalow Heaven neighborhood.
  • D. Washington Boulevard
    Washington Boulevard is a major east–west thoroughfare in Los Angeles County that passes through numerous neighborhoods and commercial districts, including Arlington Heights.
  • E. Vine Street Expressway
    The Vine Street Expressway is a major limited-access highway in Philadelphia, Pennsylvania, that carries Interstate 676 through the city’s downtown.
  • 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_69ad858b8adc8190ad989712c87a476b completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69adae1ae8f08190880d0f0e8539cdbc completed March 8, 2026, 5:12 p.m.
NED1 Entity disambiguation (via context triple) batch_69b2625a22148190927b2a63ae3fc726 completed March 12, 2026, 6:51 a.m.
NEDg Description generation batch_69b264c6022c81908b3235e88a7ed27f completed March 12, 2026, 7:01 a.m.
NED2 Entity disambiguation (via description) batch_69b268bd0d3c8190a60dda0a9086c0cc completed March 12, 2026, 7:18 a.m.
Created at: March 8, 2026, 3:08 p.m.