Triple

T12982876
Position Surface form Disambiguated ID Type / Status
Subject Sri Lanka Railways E321694 entity
Predicate secondaryHub P8522 FINISHED
Object Maradana railway station E327703 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: Maradana railway station | Statement: [Sri Lanka Railways, secondaryHub, Maradana railway station]

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: Maradana railway station
Context triple: [Sri Lanka Railways, secondaryHub, Maradana railway station]
  • A. Maradana railway station chosen
    Maradana railway station is a major railway hub in Colombo, Sri Lanka, serving as one of the city’s primary junctions connecting multiple key lines across the country.
  • B. Aluthgama railway station
    Aluthgama railway station is a coastal train station in Sri Lanka serving the town of Aluthgama on the busy southern rail corridor.
  • C. Hikkaduwa railway station
    Hikkaduwa railway station is a coastal train station in Sri Lanka serving the popular beach town of Hikkaduwa on the country’s southern railway corridor.
  • D. Kalutara South railway station
    Kalutara South railway station is a key coastal rail stop in Sri Lanka’s Western Province, serving the town of Kalutara on the busy commuter and intercity route between Colombo and the country’s southern regions.
  • E. Galle railway station
    Galle railway station is a major coastal rail hub in southern Sri Lanka, serving the historic city of Galle and connecting it with key destinations including Colombo and Matara.
  • 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_69d8076479b8819090afce3591939cdf elicitation completed
NER batch_69d97e5ca33481909a6cb06c636889f9 ner completed
NED1 batch_69f70a1ee5d08190ace265c5f15d8d30 ned_source_triple completed
Created at: April 9, 2026, 8:39 p.m.