Triple

T12253180
Position Surface form Disambiguated ID Type / Status
Subject Farmington Canal Heritage Trail E292026 entity
Predicate usesFormerInfrastructureOf P44581 FINISHED
Object New Haven–Northampton Railroad E972579 NE FINISHED

How this triple was built (2 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: New Haven–Northampton Railroad | Statement: [Farmington Canal Heritage Trail, usesFormerInfrastructureOf, New Haven–Northampton Railroad]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: New Haven–Northampton Railroad
Context triple: [Farmington Canal Heritage Trail, usesFormerInfrastructureOf, New Haven–Northampton Railroad]
  • A. New Haven–Northampton Railroad chosen
    The New Haven–Northampton Railroad was a historic New England rail line that once connected New Haven, Connecticut to Northampton, Massachusetts and later became the corridor for today’s Farmington Canal Heritage Trail.
  • B. Hartford and New Haven Railroad
    The Hartford and New Haven Railroad was a 19th-century rail line in Connecticut that later became part of the larger New York, New Haven and Hartford Railroad system.
  • C. New Haven–Springfield Line
    The New Haven–Springfield Line is a key passenger rail corridor in the northeastern United States connecting New Haven, Connecticut, with Springfield, Massachusetts, and serving both intercity and commuter rail services.
  • D. New England Central Railroad
    New England Central Railroad is a regional freight railroad operating primarily in New England, providing vital rail connections between local industries and the broader North American rail network.
  • E. New Canaan Railroad
    The New Canaan Railroad was a 19th-century railroad company in Connecticut that built and operated the line later known as Metro-North's New Canaan Branch.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d6ab67950c8190be08450a06228c4b completed April 8, 2026, 7:24 p.m.
NER Named-entity recognition batch_69d91cc849308190b6ff416f8b4f01e8 completed April 10, 2026, 3:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69f61e620ed88190b46d256ebe994714 completed May 2, 2026, 3:55 p.m.
Created at: April 8, 2026, 9:52 p.m.