Triple

T8338906
Position Surface form Disambiguated ID Type / Status
Subject Island End River E195858 entity
Predicate partOf P40 FINISHED
Object Mystic River system E30307 NE FINISHED

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: Mystic River system | Statement: [Island End River, partOf, Mystic River system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mystic River system
Context triple: [Island End River, partOf, Mystic River system]
  • A. Mystic River watershed chosen
    The Mystic River watershed is a drainage basin in the Greater Boston area of Massachusetts that collects water from numerous rivers and streams before emptying into Boston Harbor.
  • B. Charles River watershed
    The Charles River watershed is the drainage basin in eastern Massachusetts that collects water from numerous ponds, streams, and rivers and channels it into the Charles River before it flows into Boston Harbor.
  • C. Aberjona River
    The Aberjona River is a small river in eastern Massachusetts that flows through communities such as Winchester and Woburn before joining the Mystic River.
  • D. Saugus River watershed
    The Saugus River watershed is the drainage basin in eastern Massachusetts that collects and channels water from numerous tributaries into the Saugus River before it flows into the Atlantic Ocean.
  • E. Mystic River (Connecticut)
    Mystic River (Connecticut) is a tidal estuary in southeastern Connecticut historically significant for its role in early colonial and Native American history, including the Pequot War.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69ca82ecbdc481908a55cad8ca062d88 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb7fd68e348190a7cb8639a263b50f completed March 31, 2026, 8:03 a.m.
NED1 Entity disambiguation (via context triple) batch_69cde794a4008190bbcb2f114c503458 completed April 2, 2026, 3:50 a.m.
Created at: March 30, 2026, 5:57 p.m.