Triple

T23135531
Position Surface form Disambiguated ID Type / Status
Subject Gampaha E577308 entity
Predicate hasRailwayStation P918 FINISHED
Object Gampaha railway station
Gampaha railway station is a key passenger and commuter rail stop in the city of Gampaha, Sri Lanka, serving as part of the country’s main railway network.
 E1574578 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: Gampaha railway station | Statement: [Gampaha, hasRailwayStation, Gampaha railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Gampaha railway station
Context triple: [Gampaha, hasRailwayStation, Gampaha 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. Anuradhapura railway station
    Anuradhapura railway station is a major rail hub in Sri Lanka’s North Central Province, serving the historic city of Anuradhapura and linking it to key destinations across the country.
  • C. 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.
  • D. 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.
  • E. Kandy railway station
    Kandy railway station is a major rail hub in central Sri Lanka, serving the historic city of Kandy and connecting it to key destinations 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: Gampaha railway station
Triple: [Gampaha, hasRailwayStation, Gampaha railway station]
Generated description
Gampaha railway station is a key passenger and commuter rail stop in the city of Gampaha, Sri Lanka, serving as part of the country’s main railway network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Gampaha railway station
Target entity description: Gampaha railway station is a key passenger and commuter rail stop in the city of Gampaha, Sri Lanka, serving as part of the country’s main railway network.
  • 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. Anuradhapura railway station
    Anuradhapura railway station is a major rail hub in Sri Lanka’s North Central Province, serving the historic city of Anuradhapura and linking it to key destinations across the country.
  • C. 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.
  • D. 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.
  • E. Kandy railway station
    Kandy railway station is a major rail hub in central Sri Lanka, serving the historic city of Kandy and connecting it to key destinations 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_69e245f7b0e481909c473ff4e6a54e2c completed April 17, 2026, 2:38 p.m.
NER Named-entity recognition batch_69f18e8b694c8190b9ead00ea0576d90 completed April 29, 2026, 4:52 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0c308901088190a3dd91561a5c123f completed May 19, 2026, 9:42 a.m.
NEDg Description generation batch_6a0c3468ecf48190ae05d776b6b472c6 completed May 19, 2026, 9:59 a.m.
NED2 Entity disambiguation (via description) batch_6a0c34b344248190a6f1b34dede10db1 completed May 19, 2026, 10 a.m.
Created at: April 17, 2026, 4 p.m.