Triple

T14012237
Position Surface form Disambiguated ID Type / Status
Subject Weligama railway station E337110 entity
Predicate railwayLine P848 FINISHED
Object Coastal Line (Sri Lanka)
Coastal Line (Sri Lanka) is a major railway route running along Sri Lanka’s southwestern and southern coast, connecting Colombo with key coastal towns and cities.
E82574 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: Coastal Line (Sri Lanka) | Statement: [Weligama railway station, railwayLine, Coastal Line (Sri Lanka)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Coastal Line (Sri Lanka)
Context triple: [Weligama railway station, railwayLine, Coastal Line (Sri Lanka)]
  • A. Eastern Line (Sri Lanka)
    Eastern Line (Sri Lanka) is a major railway route in Sri Lanka that connects the island’s eastern regions with the national rail network, serving key towns and facilitating passenger and freight transport.
  • B. Puttalam Line
    The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
  • C. Northern Line (Sri Lanka)
    The Northern Line (Sri Lanka) is a major railway route that connects Colombo with the northern regions of Sri Lanka, including the city of Jaffna, serving as a key corridor for passenger and freight transport.
  • D. Main Line (Sri Lanka)
    Main Line (Sri Lanka) is a major railway route running inland from Colombo through the central highlands, serving as one of the country’s primary passenger and freight corridors.
  • E. Colombo–Matara railway line
    The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
  • 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: Coastal Line (Sri Lanka)
Triple: [Weligama railway station, railwayLine, Coastal Line (Sri Lanka)]
Generated description
Coastal Line (Sri Lanka) is a major railway route running along Sri Lanka’s southwestern and southern coast, connecting Colombo with key coastal towns and cities.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Coastal Line (Sri Lanka)
Target entity description: Coastal Line (Sri Lanka) is a major railway route running along Sri Lanka’s southwestern and southern coast, connecting Colombo with key coastal towns and cities.
  • A. Eastern Line (Sri Lanka)
    Eastern Line (Sri Lanka) is a major railway route in Sri Lanka that connects the island’s eastern regions with the national rail network, serving key towns and facilitating passenger and freight transport.
  • B. Puttalam Line
    The Puttalam Line is a major railway line in Sri Lanka that runs along the island’s western coast, serving towns and industrial areas between Colombo and Puttalam.
  • C. Northern Line (Sri Lanka)
    The Northern Line (Sri Lanka) is a major railway route that connects Colombo with the northern regions of Sri Lanka, including the city of Jaffna, serving as a key corridor for passenger and freight transport.
  • D. Main Line (Sri Lanka)
    Main Line (Sri Lanka) is a major railway route running inland from Colombo through the central highlands, serving as one of the country’s primary passenger and freight corridors.
  • E. Colombo–Matara railway line chosen
    The Colombo–Matara railway line is a coastal rail route in southwestern Sri Lanka that connects the capital region with major southern cities, including Galle and Matara.
  • F. None of above.

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_69d81c645c5c8190b1fd16a285a1b78a completed April 9, 2026, 9:38 p.m.
NER Named-entity recognition batch_69de2ed5cfd0819085b9c860b119a9de completed April 14, 2026, 12:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69fcb653fedc81908cdd0dde2d3f3329 completed May 7, 2026, 3:57 p.m.
NEDg Description generation batch_69fcc39638688190a57e47b189de841b completed May 7, 2026, 4:53 p.m.
NED2 Entity disambiguation (via description) batch_69fcc450fea881909e3b5bbd96469a8b completed May 7, 2026, 4:56 p.m.
Created at: April 9, 2026, 10:19 p.m.