Triple

T21326516
Position Surface form Disambiguated ID Type / Status
Subject Bantam River E525771 entity
Predicate partOf P40 FINISHED
Object Housatonic River watershed — NE NERFINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Housatonic River watershed | Statement: [Bantam River, partOf, Housatonic River watershed]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Housatonic River watershed
Context triple: [Bantam River, partOf, Housatonic River watershed]
  • A. Housatonic River watershed chosen
    The Housatonic River watershed is the drainage basin encompassing all the land and waterways that feed into the Housatonic River across western Massachusetts, western Connecticut, and parts of eastern New York.
  • B. Blackstone River watershed
    The Blackstone River watershed is a major New England river basin that drains portions of Massachusetts and Rhode Island, historically central to early American industrialization and mill development.
  • C. Nashua River watershed
    The Nashua River watershed is a river basin in north-central Massachusetts and southern New Hampshire that drains the lands surrounding the Nashua River and its tributaries.
  • D. Concord River watershed
    The Concord River watershed is a New England river basin in eastern Massachusetts that collects the flow of several tributaries and drains into the Merrimack River system.
  • E. Mattapoisett River watershed
    The Mattapoisett River watershed is a coastal New England drainage basin in southeastern Massachusetts that feeds into Buzzards Bay and supports important ecological, recreational, and drinking water resources.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69e0b51b90788190a4dd823d962626da elicitation completed
NER batch_69e7ab49aa48819083b3793657903216 ner completed
Created at: April 16, 2026, 4:41 p.m.