Triple

T7304040
Position Surface form Disambiguated ID Type / Status
Subject Lower Mystic Lake E167929 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: [Lower Mystic Lake, partOf, Mystic River system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mystic River system
Context triple: [Lower Mystic Lake, 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. 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.
  • C. 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.
  • D. 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.
  • E. Saugus River
    The Saugus River is a coastal river in northeastern Massachusetts that flows through communities including Saugus and Lynn before emptying into the Atlantic Ocean.
  • 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_69c6888c820881909fc68f689fe1c251 completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6ebb352ec8190846eff044e08805e completed March 27, 2026, 8:42 p.m.
NED1 Entity disambiguation (via context triple) batch_69c810c167848190a70f4e43c19f5809 completed March 28, 2026, 5:32 p.m.
Created at: March 27, 2026, 3:01 p.m.