Triple

T22214505
Position Surface form Disambiguated ID Type / Status
Subject Ragama E549039 entity
Predicate hasRailwayStation P918 FINISHED
Object Ragama railway station
Ragama railway station is a key junction on Sri Lanka’s coastal and main railway lines, serving the suburban town of Ragama in the Western Province.
 E1525908 NE FINISHED

How this triple was built (4 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: Ragama railway station | Statement: [Ragama, hasRailwayStation, Ragama railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ragama railway station
Context triple: [Ragama, hasRailwayStation, Ragama railway station]
  • A. Weligama railway station
    Weligama railway station is a coastal train stop in southern Sri Lanka serving the town of Weligama on the country’s main southern rail corridor.
  • B. Maradana railway station
    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.
  • C. 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.
  • D. 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.
  • E. 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.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
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: Ragama railway station
Triple: [Ragama, hasRailwayStation, Ragama railway station]
Generated description
Ragama railway station is a key junction on Sri Lanka’s coastal and main railway lines, serving the suburban town of Ragama in the Western Province.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Ragama railway station
Target entity description: Ragama railway station is a key junction on Sri Lanka’s coastal and main railway lines, serving the suburban town of Ragama in the Western Province.
  • A. Weligama railway station
    Weligama railway station is a coastal train stop in southern Sri Lanka serving the town of Weligama on the country’s main southern rail corridor.
  • B. Maradana railway station
    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.
  • C. 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.
  • D. 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.
  • E. 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.
  • F. None of above. chosen

Provenance (5 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_69f12b8b13f8819099ed8bebbfea3bc8 completed April 28, 2026, 9:50 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0aae66ee5c8190be56910aaecce5d6 completed May 18, 2026, 6:15 a.m.
NEDg Description generation batch_6a0aaf2f24588190a08dc5158603ee9b completed May 18, 2026, 6:18 a.m.
NED2 Entity disambiguation (via description) batch_6a0ab02b3ba48190a8d462a5f68995f2 completed May 18, 2026, 6:22 a.m.
Created at: April 16, 2026, 8:37 p.m.