Triple

T15061912
Position Surface form Disambiguated ID Type / Status
Subject Lake Artemesia E379648 entity
Predicate locatedIn P40 FINISHED
Object Anacostia River watershed E38570 NE FINISHED

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: Anacostia River watershed | Statement: [Lake Artemesia, locatedIn, Anacostia 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: Anacostia River watershed
Context triple: [Lake Artemesia, locatedIn, Anacostia River watershed]
  • A. Anacostia River chosen
    The Anacostia River is a tidal river in the Washington, D.C. area known for its historical significance, urban setting, and long-running environmental restoration efforts.
  • B. Anacostia
    Anacostia is a historic neighborhood in Southeast Washington, D.C., known for its African American heritage and cultural landmarks.
  • C. Patapsco River
    The Patapsco River is a major waterway in central Maryland that flows into the Chesapeake Bay and forms the harbor of Baltimore.
  • D. Anacostia River and Potomac River
    The Anacostia River and Potomac River are two major waterways in the Washington, D.C. area whose confluence forms a significant geographic and ecological feature of the region.
  • E. Occoquan River
    The Occoquan River is a tributary of the Potomac River in northern Virginia, known for its role in regional water supply, recreation, and the historic town of Occoquan along its banks.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d85cd7683881908d405c1b5d7b4f7f elicitation completed
NER batch_69dedee6a55c8190b40c4672fb46b79b ner completed
NED1 batch_69fea5c612d481909575b76f7aa96c50 ned_source_triple completed
Created at: April 10, 2026, 3:02 a.m.