Triple

T3974761
Position Surface form Disambiguated ID Type / Status
Subject Boston Elevated Railway E85612 entity
Predicate operatedLine P848 FINISHED
Object Atlantic Avenue Elevated
Atlantic Avenue Elevated was an early 20th-century elevated railway line in Boston that ran along the city’s waterfront, providing rapid transit service before its closure and demolition.
E405007 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: Atlantic Avenue Elevated | Statement: [Boston Elevated Railway, operatedLine, Atlantic Avenue Elevated]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Atlantic Avenue Elevated
Context triple: [Boston Elevated Railway, operatedLine, Atlantic Avenue Elevated]
  • A. Atlantic Avenue
    Atlantic Avenue is a major thoroughfare in Brooklyn, New York City, known for its mix of residential, commercial, and cultural landmarks.
  • B. Atlantic Avenue
    Atlantic Avenue is a primary thoroughfare in Oceanside, New York, serving as a key commercial and commuter route through the community.
  • C. Main Line Elevated
    Main Line Elevated was Boston’s original elevated rapid transit line that formed the core of what is now the MBTA Orange Line.
  • D. Cross Bay Boulevard
    Cross Bay Boulevard is a major thoroughfare in Queens, New York City, running through neighborhoods such as Howard Beach and providing access toward the Rockaway Peninsula.
  • E. Crossing Delancey
    Crossing Delancey is a 1988 romantic comedy film about a modern New York woman torn between her independent lifestyle and the traditional matchmaking of her Jewish grandmother.
  • 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: Atlantic Avenue Elevated
Triple: [Boston Elevated Railway, operatedLine, Atlantic Avenue Elevated]
Generated description
Atlantic Avenue Elevated was an early 20th-century elevated railway line in Boston that ran along the city’s waterfront, providing rapid transit service before its closure and demolition.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Atlantic Avenue Elevated
Target entity description: Atlantic Avenue Elevated was an early 20th-century elevated railway line in Boston that ran along the city’s waterfront, providing rapid transit service before its closure and demolition.
  • A. Atlantic Avenue
    Atlantic Avenue is a major thoroughfare in Brooklyn, New York City, known for its mix of residential, commercial, and cultural landmarks.
  • B. Atlantic Avenue
    Atlantic Avenue is a primary thoroughfare in Oceanside, New York, serving as a key commercial and commuter route through the community.
  • C. Main Line Elevated
    Main Line Elevated was Boston’s original elevated rapid transit line that formed the core of what is now the MBTA Orange Line.
  • D. Cross Bay Boulevard
    Cross Bay Boulevard is a major thoroughfare in Queens, New York City, running through neighborhoods such as Howard Beach and providing access toward the Rockaway Peninsula.
  • E. Crossing Delancey
    Crossing Delancey is a 1988 romantic comedy film about a modern New York woman torn between her independent lifestyle and the traditional matchmaking of her Jewish grandmother.
  • 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_69aed93908348190a26c8aaf4fab3e86 completed March 9, 2026, 2:29 p.m.
NER Named-entity recognition batch_69aef9b511f88190afca12c77481b344 completed March 9, 2026, 4:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69b5401712188190aa6144dc1d5dcab6 completed March 14, 2026, 11:01 a.m.
NEDg Description generation batch_69b54411546481908627a8b3ce7a433a completed March 14, 2026, 11:18 a.m.
NED2 Entity disambiguation (via description) batch_69b544a02d5c8190a76a074cc7e98cc5 completed March 14, 2026, 11:21 a.m.
Created at: March 9, 2026, 3:32 p.m.