Triple

T22215122
Position Surface form Disambiguated ID Type / Status
Subject Kelani Valley Line E549055 entity
Predicate servesArea P82 FINISHED
Object Kelani River basin — NE NERFINISHED

How this triple was built (3 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: Kelani River basin | Statement: [Kelani Valley Line, servesArea, Kelani River basin]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Kelani River basin
Context triple: [Kelani Valley Line, servesArea, Kelani River basin]
  • A. Tua River basin
    The Tua River basin is a river drainage area in northeastern Portugal known for its scenic valleys, vineyards, and role as a tributary region of the Douro River.
  • B. Simeto River basin
    The Simeto River basin is a major river drainage area in central-eastern Sicily, Italy, known for its agricultural landscapes and role in feeding the island’s largest river, the Simeto.
  • C. Vaigai River basin
    The Vaigai River basin is a river catchment area in southern India that collects and channels rainfall from surrounding highlands, including the Cardamom Hills, into the Vaigai River system.
  • D. Mithi River basin
    The Mithi River basin is an urban river catchment area in Mumbai, India, that drains parts of the city including major lakes and industrial zones before flowing into the Arabian Sea.
  • E. Pangani River Basin
    The Pangani River Basin is a major East African watershed in northern Tanzania and southern Kenya, encompassing diverse ecosystems and supporting agriculture, hydropower, and communities along the Pangani River and its tributaries.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Kelani River basin
Target entity description: The Kelani River basin is a major river catchment area in western Sri Lanka that supports dense populations, agriculture, and industry while providing a key source of water and hydropower.
  • A. Tua River basin
    The Tua River basin is a river drainage area in northeastern Portugal known for its scenic valleys, vineyards, and role as a tributary region of the Douro River.
  • B. Simeto River basin
    The Simeto River basin is a major river drainage area in central-eastern Sicily, Italy, known for its agricultural landscapes and role in feeding the island’s largest river, the Simeto.
  • C. Vaigai River basin
    The Vaigai River basin is a river catchment area in southern India that collects and channels rainfall from surrounding highlands, including the Cardamom Hills, into the Vaigai River system.
  • D. Mithi River basin
    The Mithi River basin is an urban river catchment area in Mumbai, India, that drains parts of the city including major lakes and industrial zones before flowing into the Arabian Sea.
  • E. Pangani River Basin
    The Pangani River Basin is a major East African watershed in northern Tanzania and southern Kenya, encompassing diverse ecosystems and supporting agriculture, hydropower, and communities along the Pangani River and its tributaries.
  • F. None of above. chosen

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_69e11e3f7e04819089806d81d5ac431e completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f12b8bdfbc8190832809edbe8b7c27 completed April 28, 2026, 9:50 p.m.
Created at: April 16, 2026, 8:37 p.m.