Triple

T89933
Position Surface form Disambiguated ID Type / Status
Subject Charles River E1807 entity
Predicate hasBridge P386 FINISHED
Object Boston University Bridge
The Boston University Bridge is a steel truss bridge in Boston, Massachusetts, notable for carrying both road traffic and the MBTA Green Line over the Charles River near the Boston University campus.
 E36108 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: Boston University Bridge | Statement: [Charles River, hasBridge, Boston University Bridge]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Boston University Bridge
Context triple: [Charles River, hasBridge, Boston University Bridge]
  • A. Harvard Bridge
    Harvard Bridge is a long roadway bridge in Boston and Cambridge, Massachusetts, best known for carrying Massachusetts Avenue over the Charles River and for its quirky "smoot" length measurement.
  • B. Longfellow Bridge
    Longfellow Bridge is a historic steel and granite bridge in Boston, Massachusetts, known for carrying road and rail traffic between Boston and Cambridge across the Charles River.
  • C. Madison Avenue Bridge
    The Madison Avenue Bridge is a historic swing bridge in New York City that carries Madison Avenue traffic between Manhattan and the Bronx.
  • D. Willis Avenue Bridge
    The Willis Avenue Bridge is a swing bridge in New York City that carries traffic between Manhattan and the Bronx.
  • 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: Boston University Bridge
Triple: [Charles River, hasBridge, Boston University Bridge]
Generated description
The Boston University Bridge is a steel truss bridge in Boston, Massachusetts, notable for carrying both road traffic and the MBTA Green Line over the Charles River near the Boston University campus.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Boston University Bridge
Target entity description: The Boston University Bridge is a steel truss bridge in Boston, Massachusetts, notable for carrying both road traffic and the MBTA Green Line over the Charles River near the Boston University campus.
  • A. Harvard Bridge
    Harvard Bridge is a long roadway bridge in Boston and Cambridge, Massachusetts, best known for carrying Massachusetts Avenue over the Charles River and for its quirky "smoot" length measurement.
  • B. Longfellow Bridge
    Longfellow Bridge is a historic steel and granite bridge in Boston, Massachusetts, known for carrying road and rail traffic between Boston and Cambridge across the Charles River.
  • C. Madison Avenue Bridge
    The Madison Avenue Bridge is a historic swing bridge in New York City that carries Madison Avenue traffic between Manhattan and the Bronx.
  • D. Willis Avenue Bridge
    The Willis Avenue Bridge is a swing bridge in New York City that carries traffic between Manhattan and the Bronx.
  • 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_69a24d1a97dc819094e6c021fe9b05a7 completed Feb. 28, 2026, 2:04 a.m.
NER Named-entity recognition batch_69a383e3575c8190932dcdc25503d06e completed March 1, 2026, 12:10 a.m.
NED1 Entity disambiguation (via context triple) batch_69a3949ab3e08190ac62002644f514c0 completed March 1, 2026, 1:21 a.m.
NEDg Description generation batch_69a395084bf48190acbff2afc1c9a76a completed March 1, 2026, 1:23 a.m.
NED2 Entity disambiguation (via description) batch_69a3955a4a388190ba06878daea4c9fe completed March 1, 2026, 1:24 a.m.
Created at: Feb. 28, 2026, 2:07 a.m.