Triple

T22930129
Position Surface form Disambiguated ID Type / Status
Subject Bambalapitiya E569411 entity
Predicate hasRailwayStation P918 FINISHED
Object 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.
 E1564361 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: Bambalapitiya railway station | Statement: [Bambalapitiya, hasRailwayStation, Bambalapitiya railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Bambalapitiya railway station
Context triple: [Bambalapitiya, hasRailwayStation, Bambalapitiya railway station]
  • A. 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.
  • B. 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.
  • C. 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.
  • D. Badulla railway station
    Badulla railway station is the scenic terminus of Sri Lanka’s Main Line, serving the hill-country town of Badulla and known for its historic charm and surrounding tea-country landscapes.
  • 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.
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: Bambalapitiya railway station
Triple: [Bambalapitiya, hasRailwayStation, Bambalapitiya railway station]
Generated description
Bambalapitiya railway station is a coastal suburban train station in Colombo, Sri Lanka, serving the Bambalapitiya area on the country’s main railway line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Bambalapitiya railway station
Target entity description: Bambalapitiya railway station is a coastal suburban train station in Colombo, Sri Lanka, serving the Bambalapitiya area on the country’s main railway line.
  • A. 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.
  • B. 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.
  • C. 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.
  • D. Badulla railway station
    Badulla railway station is the scenic terminus of Sri Lanka’s Main Line, serving the hill-country town of Badulla and known for its historic charm and surrounding tea-country landscapes.
  • 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 (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_69e2458f7d008190901dccbaebeaba24 completed April 17, 2026, 2:37 p.m.
NER Named-entity recognition batch_69f180dc33e8819099e5ad87207de57f completed April 29, 2026, 3:54 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0bd3651c408190a2dc8e55d002a496 completed May 19, 2026, 3:05 a.m.
NEDg Description generation batch_6a0bd48cac988190b98142d009a64f54 completed May 19, 2026, 3:10 a.m.
NED2 Entity disambiguation (via description) batch_6a0bd4e53024819084592e995cc902e7 completed May 19, 2026, 3:11 a.m.
Created at: April 17, 2026, 3:44 p.m.