Triple

T16583111
Position Surface form Disambiguated ID Type / Status
Subject Southern Expressway (Sri Lanka) E402884 entity
Predicate connectsTo P845 FINISHED
Object Matara–Hambantota extension E402884 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: Matara–Hambantota extension | Statement: [Southern Expressway (Sri Lanka), connectsTo, Matara–Hambantota extension]

Disambiguation candidates (1 decision)

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: Matara–Hambantota extension
Context triple: [Southern Expressway (Sri Lanka), connectsTo, Matara–Hambantota extension]
  • A. Colombo–Matara railway line
    The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
  • B. Puttalam Line
    The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
  • C. Colombo–Badulla railway line
    The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
  • D. Southern Expressway of Sri Lanka chosen
    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.
  • E. Colombo–Trincomalee route
    The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 batches)

Stage Batch ID Job type Status
creating batch_69d88387363c8190a97a0c942130de97 elicitation completed
NER batch_69e35999088c8190900497f18728bd0b ner completed
NED1 batch_6a006ef2d6048190954144ab848760ec ned_source_triple completed
Created at: April 10, 2026, 5:16 a.m.