Triple

T20507806
Position Surface form Disambiguated ID Type / Status
Subject Mississippi River at St. Louis, Missouri E503479 entity
Predicate upstreamOf P5955 FINISHED
Object Mississippi River at Memphis, Tennessee — NE NERFINISHED

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: Mississippi River at Memphis, Tennessee | Statement: [Mississippi River at St. Louis, Missouri, upstreamOf, Mississippi River at Memphis, Tennessee]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mississippi River at Memphis, Tennessee
Context triple: [Mississippi River at St. Louis, Missouri, upstreamOf, Mississippi River at Memphis, Tennessee]
  • A. Mississippi River at Memphis chosen
    The Mississippi River at Memphis is a major stretch of the river where it flows past downtown Memphis, Tennessee, serving as a key commercial waterway and iconic natural landmark of the region.
  • B. Mississippi River at St. Louis, Missouri
    The Mississippi River at St. Louis, Missouri is a major stretch of the Mississippi where it flows past the city of St. Louis and receives the waters of the Missouri River, forming one of North America’s most significant river confluences.
  • C. Mississippi River near Grafton, Illinois
    The Mississippi River near Grafton, Illinois is a major stretch of the river in southwestern Illinois where it meets the Illinois River, forming a notable confluence and scenic river landscape.
  • D. Mississippi River at New Orleans
    The Mississippi River at New Orleans is a major lower Mississippi waterway segment flowing past the city’s historic riverfront and spanned by key crossings such as the Crescent City Connection.
  • E. Mississippi River at Hannibal
    The Mississippi River at Hannibal is a historically significant stretch of the river in Missouri, known for its role in 19th-century transportation and its association with Mark Twain’s boyhood town.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e0b4b1e52c8190894281cf7e3283ab completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e69dc8f3c881908ed2e0257a057e73 completed April 20, 2026, 9:42 p.m.
Created at: April 16, 2026, 11:36 a.m.