Triple

T4573695
Position Surface form Disambiguated ID Type / Status
Subject Chaminda Vaas E123093 entity
Predicate placeOfBirth P1 FINISHED
Object Mattumagala, Sri Lanka
Mattumagala, Sri Lanka is a locality best known as the birthplace of renowned Sri Lankan fast bowler Chaminda Vaas.
 E454572 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: Mattumagala, Sri Lanka | Statement: [Chaminda Vaas, placeOfBirth, Mattumagala, Sri Lanka]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mattumagala, Sri Lanka
Context triple: [Chaminda Vaas, placeOfBirth, Mattumagala, Sri Lanka]
  • A. Sri Lanka
    Sri Lanka is an island nation in the Indian Ocean known for its rich cultural heritage, diverse landscapes, and strategic location off the southern coast of India.
  • B. Lanka
    Lanka is the island kingdom in the Ramayana epic ruled by the demon king Ravana, where Sita is held captive and Rama wages war to rescue her.
  • C. Southern Province, Sri Lanka
    Southern Province, Sri Lanka is a coastal administrative region in the south of Sri Lanka known for its historic cities, beaches, and cultural heritage.
  • D. Northern Province, Sri Lanka
    Northern Province, Sri Lanka is the island nation’s northernmost province, centered on the Jaffna Peninsula and known for its Tamil cultural heritage and post-civil war reconstruction.
  • E. Horagolla Walauwa, Sri Lanka
    Horagolla Walauwa is a historic ancestral mansion in Sri Lanka closely associated with the influential Bandaranaike political family, including former Prime Minister Sirimavo Bandaranaike.
  • 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: Mattumagala, Sri Lanka
Triple: [Chaminda Vaas, placeOfBirth, Mattumagala, Sri Lanka]
Generated description
Mattumagala, Sri Lanka is a locality best known as the birthplace of renowned Sri Lankan fast bowler Chaminda Vaas.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mattumagala, Sri Lanka
Target entity description: Mattumagala, Sri Lanka is a locality best known as the birthplace of renowned Sri Lankan fast bowler Chaminda Vaas.
  • A. Sri Lanka
    Sri Lanka is an island nation in the Indian Ocean known for its rich cultural heritage, diverse landscapes, and strategic location off the southern coast of India.
  • B. Lanka
    Lanka is the island kingdom in the Ramayana epic ruled by the demon king Ravana, where Sita is held captive and Rama wages war to rescue her.
  • C. Southern Province, Sri Lanka
    Southern Province, Sri Lanka is a coastal administrative region in the south of Sri Lanka known for its historic cities, beaches, and cultural heritage.
  • D. Northern Province, Sri Lanka
    Northern Province, Sri Lanka is the island nation’s northernmost province, centered on the Jaffna Peninsula and known for its Tamil cultural heritage and post-civil war reconstruction.
  • E. Horagolla Walauwa, Sri Lanka
    Horagolla Walauwa is a historic ancestral mansion in Sri Lanka closely associated with the influential Bandaranaike political family, including former Prime Minister Sirimavo Bandaranaike.
  • 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_69bd46466c7081909d07f36be2d08804 completed March 20, 2026, 1:06 p.m.
NER Named-entity recognition batch_69bd58c89a5c81909a78bf0ac64777ad completed March 20, 2026, 2:25 p.m.
NED1 Entity disambiguation (via context triple) batch_69bde08756548190bb8433854c3efe01 completed March 21, 2026, 12:04 a.m.
NEDg Description generation batch_69bde129ec748190af03e37c8d47ab3c completed March 21, 2026, 12:07 a.m.
NED2 Entity disambiguation (via description) batch_69bde1c01e7081909eb968b5603ee2b0 completed March 21, 2026, 12:09 a.m.
Created at: March 20, 2026, 1:10 p.m.