Triple

T8772229
Position Surface form Disambiguated ID Type / Status
Subject Rockland–Vinalhaven E208491 entity
Predicate operatedBy P86 FINISHED
Object Maine State Ferry Service E41377 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: Maine State Ferry Service | Statement: [Rockland–Vinalhaven, operatedBy, Maine State Ferry Service]

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: Maine State Ferry Service
Context triple: [Rockland–Vinalhaven, operatedBy, Maine State Ferry Service]
  • A. Maine State Ferry Service chosen
    The Maine State Ferry Service is a publicly operated ferry system that provides essential transportation between mainland Maine and several of its coastal island communities.
  • B. Casco Bay Lines
    Casco Bay Lines is a ferry service operating passenger and vehicle routes among the islands and mainland ports of Casco Bay in Maine.
  • C. Maine Port Authority
    The Maine Port Authority is a state agency responsible for developing, managing, and promoting Maine’s commercial port facilities and maritime transportation infrastructure.
  • D. Washington Island Ferry Line
    Washington Island Ferry Line is a ferry service that transports passengers, vehicles, and goods between Washington Island and the Door Peninsula in Wisconsin.
  • E. Washington State Ferries
    Washington State Ferries is the largest ferry system in the United States, operating a network of passenger and vehicle routes across the waterways of Washington State.
  • 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_69ca835edb4481909b4aafb616dc5eb7 elicitation completed
NER batch_69cc5f2c54c08190a904723d1f0527a4 ner completed
NED1 batch_69cf51c0125c819098deb7a54688b125 ned_source_triple completed
Created at: March 30, 2026, 6:41 p.m.