Triple

T3478713
Position Surface form Disambiguated ID Type / Status
Subject Cal-Sag Channel E73438 entity
Predicate operator P179 FINISHED
Object Metropolitan Water Reclamation District of Greater Chicago E83512 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: Metropolitan Water Reclamation District of Greater Chicago | Statement: [Cal-Sag Channel, operator, Metropolitan Water Reclamation District of Greater Chicago]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Water Reclamation District of Greater Chicago
Context triple: [Cal-Sag Channel, operator, Metropolitan Water Reclamation District of Greater Chicago]
  • A. Metropolitan Water Reclamation District of Greater Chicago chosen
    The Metropolitan Water Reclamation District of Greater Chicago is a special-purpose governmental agency responsible for wastewater treatment, stormwater management, and flood control across the Chicago metropolitan area.
  • B. Palatine Park District
    Palatine Park District is the local governmental agency that manages parks, recreational facilities, and community programs for residents of Palatine, Illinois.
  • C. Chicago waterworks
    Chicago waterworks was a 19th-century municipal water supply facility in Chicago that became historically notable after being largely destroyed in the Great Chicago Fire of 1871.
  • D. Waukegan Park District
    The Waukegan Park District is the local government agency responsible for providing parks, recreational facilities, and community programs for residents of Waukegan, Illinois.
  • E. Chicago Metropolitan Agency for Planning
    The Chicago Metropolitan Agency for Planning is the regional planning organization responsible for long-range land use, transportation, and economic development planning in the greater Chicago area.
  • 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_69ad85b3c9b08190857cae74c7f36da9 completed March 8, 2026, 2:20 p.m.
NER Named-entity recognition batch_69adbb5ca73c81908256e3339a3a6f9f completed March 8, 2026, 6:09 p.m.
NED1 Entity disambiguation (via context triple) batch_69b373b5086081908ee4491860597557 completed March 13, 2026, 2:17 a.m.
Created at: March 8, 2026, 3:17 p.m.