Triple

T11690158
Position Surface form Disambiguated ID Type / Status
Subject La Mesa Watershed Reservation E277846 entity
Predicate operator P179 FINISHED
Object Metropolitan Waterworks and Sewerage System E275431 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 Waterworks and Sewerage System | Statement: [La Mesa Watershed Reservation, operator, Metropolitan Waterworks and Sewerage System]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Waterworks and Sewerage System
Context triple: [La Mesa Watershed Reservation, operator, Metropolitan Waterworks and Sewerage System]
  • A. Metropolitan Waterworks and Sewerage System chosen
    The Metropolitan Waterworks and Sewerage System is a Philippine government agency responsible for providing and regulating water supply and sewerage services in Metro Manila and nearby areas.
  • B. Metropolitan Water Works system
    The Metropolitan Water Works system is a historic public water supply network that provided drinking water to the Boston metropolitan area through an extensive system of reservoirs, aqueducts, and related infrastructure.
  • C. Maynilad Water Services, Inc.
    Maynilad Water Services, Inc. is a major private water and wastewater service provider responsible for supplying and managing water services in the West Zone of Metro Manila, Philippines.
  • D. Manila Water Company, Inc.
    Manila Water Company, Inc. is a major Philippine utility firm responsible for providing water supply and wastewater services to the eastern part of Metro Manila and nearby areas.
  • E. Angat–Ipo–La Mesa water system
    The Angat–Ipo–La Mesa water system is a major integrated water supply network in the Philippines that sources, stores, and conveys water from the Angat and Ipo dams to the La Mesa watershed and treatment facilities serving Metro Manila.
  • 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_69d6aafe02d881909900d54ad7d4af84 completed April 8, 2026, 7:22 p.m.
NER Named-entity recognition batch_69d8a478f4c481908b2ba7b70972590d completed April 10, 2026, 7:19 a.m.
NED1 Entity disambiguation (via context triple) batch_69ef831d27248190894ffdb12c1ddd4d completed April 27, 2026, 3:39 p.m.
Created at: April 8, 2026, 9:40 p.m.