Triple

T22231139
Position Surface form Disambiguated ID Type / Status
Subject Puttalam Line E549467 entity
Predicate hasIntermediateStation P24280 FINISHED
Object Waikkala railway station
Waikkala railway station is a small local train stop in Waikkala, Sri Lanka, serving passengers along the coastal rail route between Colombo and Puttalam.
 E1525706 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: Waikkala railway station | Statement: [Puttalam Line, hasIntermediateStation, Waikkala railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Waikkala railway station
Context triple: [Puttalam Line, hasIntermediateStation, Waikkala railway station]
  • A. Pasila railway station
    Pasila railway station is a major rail hub in Helsinki, Finland, serving as a key junction for local and long-distance trains just north of the city center.
  • B. Taumarunui railway station
    Taumarunui railway station is a historic rail stop in New Zealand’s central North Island that once served as an important junction on the North Island Main Trunk line.
  • C. Senaki railway station
    Senaki railway station is a regional rail transport hub in western Georgia that serves passenger and freight trains on the country’s main railway network.
  • D. Pouhala rail station
    Pouhala rail station is a Skyline rail transit stop in Waipahu, Hawaii, providing local residents with access to Honolulu’s elevated rail system.
  • E. Poroy station
    Poroy station is a railway station near Cusco, Peru, serving as a key departure point for trains traveling to Machu Picchu and the Sacred Valley.
  • 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: Waikkala railway station
Triple: [Puttalam Line, hasIntermediateStation, Waikkala railway station]
Generated description
Waikkala railway station is a small local train stop in Waikkala, Sri Lanka, serving passengers along the coastal rail route between Colombo and Puttalam.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Waikkala railway station
Target entity description: Waikkala railway station is a small local train stop in Waikkala, Sri Lanka, serving passengers along the coastal rail route between Colombo and Puttalam.
  • A. Pasila railway station
    Pasila railway station is a major rail hub in Helsinki, Finland, serving as a key junction for local and long-distance trains just north of the city center.
  • B. Taumarunui railway station
    Taumarunui railway station is a historic rail stop in New Zealand’s central North Island that once served as an important junction on the North Island Main Trunk line.
  • C. Senaki railway station
    Senaki railway station is a regional rail transport hub in western Georgia that serves passenger and freight trains on the country’s main railway network.
  • D. Pouhala rail station
    Pouhala rail station is a Skyline rail transit stop in Waipahu, Hawaii, providing local residents with access to Honolulu’s elevated rail system.
  • E. Poroy station
    Poroy station is a railway station near Cusco, Peru, serving as a key departure point for trains traveling to Machu Picchu and the Sacred Valley.
  • 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_69e11e4102b881909cf47d3768e25c19 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f12bf2a26c81908aaf614d7c75e219 completed April 28, 2026, 9:51 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0aae77b9888190a975e78d442512b2 completed May 18, 2026, 6:15 a.m.
NEDg Description generation batch_6a0aaf0f47948190b602d1016badc21c completed May 18, 2026, 6:17 a.m.
NED2 Entity disambiguation (via description) batch_6a0ab0befa5481909d00cb845dd67b12 completed May 18, 2026, 6:25 a.m.
Created at: April 16, 2026, 8:38 p.m.