Triple
T21292479
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | La Mesa Reservoir |
E524830
|
entity |
| Predicate | managingAuthority |
P9686
|
FINISHED |
| Object | Metropolitan Waterworks and Sewerage System |
—
|
NE NERFINISHED |
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 Reservoir, managingAuthority, 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 Reservoir, managingAuthority, 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.
Metropolitan Water Board
The Metropolitan Water Board was a public authority responsible for supplying and regulating water services to the Greater London area in the 20th century.
-
E.
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.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0b517e6748190850d6f6ddf323d69 |
completed | April 16, 2026, 10:08 a.m. |
| NER | Named-entity recognition | batch_69e73855e5d08190aed5e285247b4e23 |
completed | April 21, 2026, 8:41 a.m. |
Created at: April 16, 2026, 4:04 p.m.