Triple

T22420739
Position Surface form Disambiguated ID Type / Status
Subject Maduru Oya National Park E554238 entity
Predicate hasFeature P182 FINISHED
Object Maduru Oya Dam
Maduru Oya Dam is a major irrigation and hydroengineering structure in Sri Lanka that helps regulate water resources within the Maduru Oya basin and supports agriculture in the surrounding region.
E1543820 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: Maduru Oya Dam | Statement: [Maduru Oya National Park, hasFeature, Maduru Oya Dam]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Maduru Oya Dam
Context triple: [Maduru Oya National Park, hasFeature, Maduru Oya Dam]
  • A. Randenigala Dam
    Randenigala Dam is a major hydroelectric and irrigation dam in Sri Lanka, forming part of the Mahaweli Development Programme and creating the Randenigala Reservoir.
  • B. Polgolla Dam
    Polgolla Dam is a key diversion dam in Sri Lanka that channels water from the Mahaweli River for irrigation, hydropower generation, and regional water management.
  • C. Maduru Oya Reservoir
    Maduru Oya Reservoir is a major irrigation and water storage reservoir in Sri Lanka, central to the Maduru Oya irrigation and wildlife conservation region.
  • D. Idamalayar Dam
    Idamalayar Dam is a major multipurpose concrete gravity dam in Kerala, India, built across the Idamalayar River (a tributary of the Periyar) for hydroelectric power generation, irrigation, and flood control.
  • E. Nuwara Wewa reservoir
    Nuwara Wewa reservoir is an ancient man-made tank in Anuradhapura, Sri Lanka, built to support large-scale irrigation and sustain the early Sinhalese civilization.
  • 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: Maduru Oya Dam
Triple: [Maduru Oya National Park, hasFeature, Maduru Oya Dam]
Generated description
Maduru Oya Dam is a major irrigation and hydroengineering structure in Sri Lanka that helps regulate water resources within the Maduru Oya basin and supports agriculture in the surrounding region.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Maduru Oya Dam
Target entity description: Maduru Oya Dam is a major irrigation and hydroengineering structure in Sri Lanka that helps regulate water resources within the Maduru Oya basin and supports agriculture in the surrounding region.
  • A. Randenigala Dam
    Randenigala Dam is a major hydroelectric and irrigation dam in Sri Lanka, forming part of the Mahaweli Development Programme and creating the Randenigala Reservoir.
  • B. Polgolla Dam
    Polgolla Dam is a key diversion dam in Sri Lanka that channels water from the Mahaweli River for irrigation, hydropower generation, and regional water management.
  • C. Maduru Oya Reservoir chosen
    Maduru Oya Reservoir is a major irrigation and water storage reservoir in Sri Lanka, central to the Maduru Oya irrigation and wildlife conservation region.
  • D. Idamalayar Dam
    Idamalayar Dam is a major multipurpose concrete gravity dam in Kerala, India, built across the Idamalayar River (a tributary of the Periyar) for hydroelectric power generation, irrigation, and flood control.
  • E. Nuwara Wewa reservoir
    Nuwara Wewa reservoir is an ancient man-made tank in Anuradhapura, Sri Lanka, built to support large-scale irrigation and sustain the early Sinhalese civilization.
  • 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_69e11e4f2d0c819091aa3558ea2ee630 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f1594b08d88190bb61a30397d0ffa5 completed April 29, 2026, 1:05 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b5848b9908190befe8158b0168a4e completed May 18, 2026, 6:19 p.m.
NEDg Description generation batch_6a0b6f5b85548190bd54f5a13dd27c5d completed May 18, 2026, 7:58 p.m.
NED2 Entity disambiguation (via description) batch_6a0b706cba28819091d40e7832e61f97 completed May 18, 2026, 8:02 p.m.
Created at: April 16, 2026, 8:46 p.m.