Triple

T6018033
Position Surface form Disambiguated ID Type / Status
Subject St. Louis–San Francisco Railway E133994 entity
Predicate headquartersLocation P62 FINISHED
Object St. Louis, Missouri E1809 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: St. Louis, Missouri | Statement: [St. Louis–San Francisco Railway, headquartersLocation, St. Louis, Missouri]

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: St. Louis, Missouri
Context triple: [St. Louis–San Francisco Railway, headquartersLocation, St. Louis, Missouri]
  • A. St. Louis, Missouri, United States chosen
    St. Louis, Missouri, United States is a major Midwestern city on the Mississippi River known for its iconic Gateway Arch, rich musical and cultural heritage, and historical role as a gateway to the American West.
  • B. Saint Louis
    Saint Louis is the canonized 13th-century king of France renowned for his piety, participation in the Crusades, and role in strengthening the French monarchy.
  • C. St. Louis metropolitan area
    The St. Louis metropolitan area is a bi-state urban region centered on the city of St. Louis, spanning parts of Missouri and Illinois and serving as a major Midwestern hub for culture, education, and industry.
  • D. Washington, Missouri
    Washington, Missouri is a small city in eastern Missouri along the Missouri River, known for its historic downtown, German heritage, and role as a regional hub in the state's wine country.
  • E. Philadelphia, Missouri
    Philadelphia, Missouri is a small unincorporated community located in Marion County in the northeastern part of the 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_69c008742a5c8190b9cb9c2787a3d8b3 elicitation completed
NER batch_69c04f8458588190a78aa32cbdbecfb1 ner completed
NED1 batch_69c113464f7481909538a1f2ef05216c ned_source_triple completed
Created at: March 22, 2026, 4:07 p.m.