Triple

T4488761
Position Surface form Disambiguated ID Type / Status
Subject Neponset River E107314 entity
Predicate hasBridge P386 FINISHED
Object Neponset River Bridge
The Neponset River Bridge is a roadway bridge in the Boston area that carries traffic across the Neponset River, connecting the neighborhoods of Boston and Quincy, Massachusetts.
E545817 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: Neponset River Bridge | Statement: [Neponset River, hasBridge, Neponset River Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Neponset River Bridge
Context triple: [Neponset River, hasBridge, Neponset River Bridge]
  • A. Piscataqua River Bridge
    The Piscataqua River Bridge is a major highway bridge carrying Interstate 95 over the Piscataqua River between Maine and New Hampshire in the northeastern United States.
  • B. West Boston Bridge
    West Boston Bridge was a 19th-century bridge over the Charles River in Boston that historically connected Boston to Cambridge before being superseded by the Longfellow Bridge.
  • C. Commonwealth Avenue Bridge
    The Commonwealth Avenue Bridge is a major road bridge in Canberra, Australia, carrying Commonwealth Avenue across Lake Burley Griffin and linking the city centre with the Parliamentary Triangle.
  • D. Seaport Boulevard Bridge
    The Seaport Boulevard Bridge is a major roadway bridge in Boston, Massachusetts, carrying Seaport Boulevard across Fort Point Channel to connect downtown with the Seaport District.
  • E. Mystic River Bridge
    The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
  • 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: Neponset River Bridge
Triple: [Neponset River, hasBridge, Neponset River Bridge]
Generated description
The Neponset River Bridge is a roadway bridge in the Boston area that carries traffic across the Neponset River, connecting the neighborhoods of Boston and Quincy, Massachusetts.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Neponset River Bridge
Target entity description: The Neponset River Bridge is a roadway bridge in the Boston area that carries traffic across the Neponset River, connecting the neighborhoods of Boston and Quincy, Massachusetts.
  • A. Piscataqua River Bridge
    The Piscataqua River Bridge is a major highway bridge carrying Interstate 95 over the Piscataqua River between Maine and New Hampshire in the northeastern United States.
  • B. West Boston Bridge
    West Boston Bridge was a 19th-century bridge over the Charles River in Boston that historically connected Boston to Cambridge before being superseded by the Longfellow Bridge.
  • C. Commonwealth Avenue Bridge
    The Commonwealth Avenue Bridge is a major road bridge in Canberra, Australia, carrying Commonwealth Avenue across Lake Burley Griffin and linking the city centre with the Parliamentary Triangle.
  • D. Seaport Boulevard Bridge
    The Seaport Boulevard Bridge is a major roadway bridge in Boston, Massachusetts, carrying Seaport Boulevard across Fort Point Channel to connect downtown with the Seaport District.
  • E. Mystic River Bridge
    The Mystic River Bridge, officially known as the Maurice J. Tobin Memorial Bridge, is a major steel cantilever roadway bridge in Boston, Massachusetts, carrying U.S. Route 1 over the Mystic River between Charlestown and Chelsea.
  • 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_69bd43f84f788190a1383579c4a595be completed March 20, 2026, 12:56 p.m.
NER Named-entity recognition batch_69bd52ad36748190b791de458f2116b2 completed March 20, 2026, 1:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69c07d33a65481908c7ab4473bed1320 completed March 22, 2026, 11:37 p.m.
NEDg Description generation batch_69c08c54755c819099decf3b6e4c6792 completed March 23, 2026, 12:41 a.m.
NED2 Entity disambiguation (via description) batch_69c08cc71a9c8190ac3aa082cb7bf0fc completed March 23, 2026, 12:43 a.m.
Created at: March 20, 2026, 12:59 p.m.