Triple

T20885734
Position Surface form Disambiguated ID Type / Status
Subject Angat–Ipo–La Mesa water system E514273 entity
Predicate partOf P40 FINISHED
Object Metro Manila water supply system
The Metro Manila water supply system is the integrated network of dams, reservoirs, treatment plants, and distribution infrastructure that provides potable water to the Greater Manila Area in the Philippines.
E514273 NE FINISHED

How this triple was built (4 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: Metro Manila water supply system | Statement: [Angat–Ipo–La Mesa water system, partOf, Metro Manila water supply system]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Metro Manila water supply system
Context triple: [Angat–Ipo–La Mesa water system, partOf, Metro Manila water supply system]
  • A. Metro Manila drainage system
    The Metro Manila drainage system is the network of rivers, canals, esteros, and engineered waterways that channels stormwater and wastewater across the National Capital Region to reduce flooding and manage urban runoff.
  • B. 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.
  • C. Metropolitan Waterworks and Sewerage System
    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.
  • D. 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.
  • E. 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.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Metro Manila water supply system
Triple: [Angat–Ipo–La Mesa water system, partOf, Metro Manila water supply system]
Generated description
The Metro Manila water supply system is the integrated network of dams, reservoirs, treatment plants, and distribution infrastructure that provides potable water to the Greater Manila Area in the Philippines.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Metro Manila water supply system
Target entity description: The Metro Manila water supply system is the integrated network of dams, reservoirs, treatment plants, and distribution infrastructure that provides potable water to the Greater Manila Area in the Philippines.
  • A. Metro Manila drainage system
    The Metro Manila drainage system is the network of rivers, canals, esteros, and engineered waterways that channels stormwater and wastewater across the National Capital Region to reduce flooding and manage urban runoff.
  • B. Angat–Ipo–La Mesa water system chosen
    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.
  • C. Metropolitan Waterworks and Sewerage System
    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.
  • D. 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.
  • E. 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.
  • F. None of above.

Provenance (5 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_69e0b4f733f081908a401c0b7beb0b9f completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e6c67c9d1c81908031eb77c124f119 completed April 21, 2026, 12:36 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0913a860b08190a8c2606c7eb6a68d completed May 17, 2026, 1:02 a.m.
NEDg Description generation batch_6a0914bb936881909f7e87a0c0aacd7a completed May 17, 2026, 1:07 a.m.
NED2 Entity disambiguation (via description) batch_6a0915506ff48190a97f89092dac2ca2 completed May 17, 2026, 1:09 a.m.
Created at: April 16, 2026, 12:46 p.m.