Triple

T16110041
Position Surface form Disambiguated ID Type / Status
Subject Hamilton Canal E390847 entity
Predicate partOf P40 FINISHED
Object Sri Lankan inland waterways system
The Sri Lankan inland waterways system is an interconnected network of canals, rivers, and lakes used historically and presently for transport, irrigation, and regional trade across Sri Lanka.
 E1194890 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Sri Lankan inland waterways system | Statement: [Hamilton Canal, partOf, Sri Lankan inland waterways system]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sri Lankan inland waterways system
Context triple: [Hamilton Canal, partOf, Sri Lankan inland waterways system]
  • A. Southern Expressway of Sri Lanka
    The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
  • B. Mahaweli Development Programme
    The Mahaweli Development Programme is a major Sri Lankan national initiative focused on river basin development, including large-scale irrigation, hydropower generation, and agricultural expansion centered around the Mahaweli River.
  • C. Ratwatte
    Ratwatte is a prominent Sri Lankan Kandyan aristocratic family historically influential in the island’s politics and society.
  • D. Maduru Oya
    Maduru Oya is a major river in Sri Lanka known for its irrigation reservoir and surrounding national park rich in wildlife and dry-zone ecosystems.
  • E. Muthurajawela–Negombo wetland complex
    The Muthurajawela–Negombo wetland complex is a major coastal marsh and lagoon ecosystem in western Sri Lanka, renowned for its rich biodiversity, flood control functions, and importance as a habitat for migratory birds.
  • 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: Sri Lankan inland waterways system
Target entity description: The Sri Lankan inland waterways system is an interconnected network of canals, rivers, and lakes used historically and presently for transport, irrigation, and regional trade across Sri Lanka.
  • A. Southern Expressway of Sri Lanka
    The Southern Expressway of Sri Lanka is a major controlled-access highway linking Colombo with key southern cities, significantly reducing travel time and boosting regional economic development.
  • B. Mahaweli Development Programme
    The Mahaweli Development Programme is a major Sri Lankan national initiative focused on river basin development, including large-scale irrigation, hydropower generation, and agricultural expansion centered around the Mahaweli River.
  • C. Ratwatte
    Ratwatte is a prominent Sri Lankan Kandyan aristocratic family historically influential in the island’s politics and society.
  • D. Maduru Oya
    Maduru Oya is a major river in Sri Lanka known for its irrigation reservoir and surrounding national park rich in wildlife and dry-zone ecosystems.
  • E. Muthurajawela–Negombo wetland complex
    The Muthurajawela–Negombo wetland complex is a major coastal marsh and lagoon ecosystem in western Sri Lanka, renowned for its rich biodiversity, flood control functions, and importance as a habitat for migratory birds.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Sri Lankan inland waterways system
Triple: [Hamilton Canal, partOf, Sri Lankan inland waterways system]
Generated description
The Sri Lankan inland waterways system is an interconnected network of canals, rivers, and lakes used historically and presently for transport, irrigation, and regional trade across Sri Lanka.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d87f1a8dd881909f1de6ef78849874 elicitation completed
NER batch_69e2016665c0819081aa7a44b1d08183 ner completed
NED1 batch_69ffeba674788190a589104cf90f28d5 ned_source_triple completed
NED2 batch_69ffee1cb2f88190b489160245a9828a ned_description completed
NEDg batch_69ffed6638788190a94b87c849dcfbc7 nedg completed
Created at: April 10, 2026, 5 a.m.