Triple

T10931106
Position Surface form Disambiguated ID Type / Status
Subject Meycauayan River E258206 entity
Predicate drainageBasin P1559 FINISHED
Object Meycauayan–Marilao–Obando River Basin E258206 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: Meycauayan–Marilao–Obando River Basin | Statement: [Meycauayan River, drainageBasin, Meycauayan–Marilao–Obando River Basin]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Meycauayan–Marilao–Obando River Basin
Context triple: [Meycauayan River, drainageBasin, Meycauayan–Marilao–Obando River Basin]
  • A. Meycauayan River chosen
    Meycauayan River is a heavily polluted river in Bulacan, Philippines, known for flowing through industrial and residential areas before emptying into Manila Bay.
  • B. Pampanga River
    The Pampanga River is a major river system in the Philippines that drains much of central Luzon, supporting extensive agriculture and communities along its floodplain.
  • C. Magat River
    Magat River is a major river in the northern Philippines known for the Magat Dam, one of the country’s largest hydroelectric and irrigation projects.
  • D. Tarlac River
    Tarlac River is a significant river in the Philippine province of Tarlac that drains agricultural plains before joining the larger Agno River system.
  • E. Marikina River
    Marikina River is a major waterway in Metro Manila, Philippines, known for flowing through the city of Marikina and frequently causing floods in surrounding urban areas.
  • 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_69d6aa8769b4819082bfe5e61b9017f0 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d770a062f481908beb76c6dbaeb6a6 completed April 9, 2026, 9:25 a.m.
NED1 Entity disambiguation (via context triple) batch_69e23bdf678881909cae518ecaacf577 completed April 17, 2026, 1:55 p.m.
Created at: April 8, 2026, 9:23 p.m.