Triple

T23494800
Position Surface form Disambiguated ID Type / Status
Subject Dematagoda E571674 entity
Predicate hasRailwayStation P918 FINISHED
Object Dematagoda railway station — 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: Dematagoda railway station | Statement: [Dematagoda, hasRailwayStation, Dematagoda railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Dematagoda railway station
Context triple: [Dematagoda, hasRailwayStation, Dematagoda railway station]
  • A. Ambalangoda railway station
    Ambalangoda railway station is a train station in the coastal town of Ambalangoda in southern Sri Lanka, serving as a stop on the country’s coastal railway line.
  • B. Gampola railway station
    Gampola railway station is a train station in Sri Lanka’s Central Province that serves the town of Gampola on the country’s Main Line.
  • C. Homagama railway station
    Homagama railway station is a local passenger rail stop in Homagama, Sri Lanka, serving communities along the narrow-gauge Kelani Valley Line.
  • D. Bambalapitiya railway station
    Bambalapitiya railway station is a coastal suburban train station in Colombo, Sri Lanka, serving the Bambalapitiya area on the country’s main railway line.
  • E. 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.
  • 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: Dematagoda railway station
Target entity description: Dematagoda railway station is a suburban rail stop in Colombo, Sri Lanka, serving the Dematagoda area on the country’s main railway network.
  • A. Ambalangoda railway station
    Ambalangoda railway station is a train station in the coastal town of Ambalangoda in southern Sri Lanka, serving as a stop on the country’s coastal railway line.
  • B. Gampola railway station
    Gampola railway station is a train station in Sri Lanka’s Central Province that serves the town of Gampola on the country’s Main Line.
  • C. Homagama railway station
    Homagama railway station is a local passenger rail stop in Homagama, Sri Lanka, serving communities along the narrow-gauge Kelani Valley Line.
  • D. Bambalapitiya railway station
    Bambalapitiya railway station is a coastal suburban train station in Colombo, Sri Lanka, serving the Bambalapitiya area on the country’s main railway line.
  • E. 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.
  • 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_69e245b4829881909b77a70e942bbd54 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f1a7def8ac8190ade511299078d55b completed April 29, 2026, 6:40 a.m.
Created at: April 17, 2026, 6:05 p.m.