Triple

T22215144
Position Surface form Disambiguated ID Type / Status
Subject Kelani Valley Line E549055 entity
Predicate hasIntermediateStation P24280 FINISHED
Object 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.
 E1535025 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: Homagama railway station | Statement: [Kelani Valley Line, hasIntermediateStation, Homagama railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Homagama railway station
Context triple: [Kelani Valley Line, hasIntermediateStation, Homagama railway station]
  • A. 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.
  • 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. 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. 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.
  • E. 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.
  • 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: Homagama railway station
Triple: [Kelani Valley Line, hasIntermediateStation, Homagama railway station]
Generated description
Homagama railway station is a local passenger rail stop in Homagama, Sri Lanka, serving communities along the narrow-gauge Kelani Valley Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Homagama railway station
Target entity description: Homagama railway station is a local passenger rail stop in Homagama, Sri Lanka, serving communities along the narrow-gauge Kelani Valley Line.
  • A. 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.
  • 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. 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. 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.
  • E. 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.
  • 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_69f12b8bdfbc8190832809edbe8b7c27 completed April 28, 2026, 9:50 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0af0cb1a308190a95865be20243f08 completed May 18, 2026, 10:58 a.m.
NEDg Description generation batch_6a0af1c05bf8819089fd76b6a03a87d0 completed May 18, 2026, 11:02 a.m.
NED2 Entity disambiguation (via description) batch_6a0af255240c8190a2ba805b1b4d72de completed May 18, 2026, 11:04 a.m.
Created at: April 16, 2026, 8:37 p.m.