Triple

T13697685
Position Surface form Disambiguated ID Type / Status
Subject Kalutara South railway station E328429 entity
Predicate servesRoute P31354 FINISHED
Object Colombo – Matara
Colombo – Matara is a major coastal railway route in Sri Lanka connecting the capital city Colombo with the southern city of Matara.
 E1055972 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: Colombo – Matara | Statement: [Kalutara South railway station, servesRoute, Colombo – Matara]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Colombo – Matara
Context triple: [Kalutara South railway station, servesRoute, Colombo – Matara]
  • A. Galle
    Galle is a historic coastal city in southern Sri Lanka renowned for its well-preserved colonial-era fort and long-standing role as a key Indian Ocean trading hub.
  • B. Galle District
    Galle District is a coastal administrative region in Sri Lanka’s Southern Province, known for its historic city of Galle, colonial-era architecture, and maritime heritage.
  • C. Maharagama
    Maharagama is a suburban city in the Colombo District of Sri Lanka, known as a densely populated residential and commercial hub within the Colombo metropolitan area.
  • D. Dematagoda
    Dematagoda is a residential and commercial suburb within the city of Colombo, Sri Lanka.
  • E. Dambulla
    Dambulla is a historic town in Sri Lanka best known for its UNESCO-listed cave temple complex featuring ancient Buddhist murals and statues.
  • 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: Colombo – Matara
Triple: [Kalutara South railway station, servesRoute, Colombo – Matara]
Generated description
Colombo – Matara is a major coastal railway route in Sri Lanka connecting the capital city Colombo with the southern city of Matara.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Colombo – Matara
Target entity description: Colombo – Matara is a major coastal railway route in Sri Lanka connecting the capital city Colombo with the southern city of Matara.
  • A. Galle
    Galle is a historic coastal city in southern Sri Lanka renowned for its well-preserved colonial-era fort and long-standing role as a key Indian Ocean trading hub.
  • B. Galle District
    Galle District is a coastal administrative region in Sri Lanka’s Southern Province, known for its historic city of Galle, colonial-era architecture, and maritime heritage.
  • C. Maharagama
    Maharagama is a suburban city in the Colombo District of Sri Lanka, known as a densely populated residential and commercial hub within the Colombo metropolitan area.
  • D. Dematagoda
    Dematagoda is a residential and commercial suburb within the city of Colombo, Sri Lanka.
  • E. Dambulla
    Dambulla is a historic town in Sri Lanka best known for its UNESCO-listed cave temple complex featuring ancient Buddhist murals and statues.
  • 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_69d8076ff62081908a7bd79889edd7a0 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69dbc878b57c819094e7ea6d1a64211f completed April 12, 2026, 4:29 p.m.
NED1 Entity disambiguation (via context triple) batch_69f794559e9c81909ef8a6d9b9f480b3 completed May 3, 2026, 6:30 p.m.
NEDg Description generation batch_69f798aab9c48190acaa78864e89411f completed May 3, 2026, 6:49 p.m.
NED2 Entity disambiguation (via description) batch_69f79943e4f4819098fa82cb6a32e08a completed May 3, 2026, 6:51 p.m.
Created at: April 9, 2026, 9:54 p.m.