Triple

T17362552
Position Surface form Disambiguated ID Type / Status
Subject Kandy railway station E422103 entity
Predicate connectsTo P845 FINISHED
Object Batticaloa railway station
Batticaloa railway station is a major rail terminus in eastern Sri Lanka serving the city of Batticaloa and linking it to the country’s central and western regions.
 E1278210 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: Batticaloa railway station | Statement: [Kandy railway station, connectsTo, Batticaloa railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Batticaloa railway station
Context triple: [Kandy railway station, connectsTo, Batticaloa railway station]
  • A. Jaffna railway station
    Jaffna railway station is a major rail hub in northern Sri Lanka, serving the city of Jaffna and connecting it to Colombo and other key destinations on the island’s rail network.
  • B. Trincomalee railway station
    Trincomalee railway station is a key terminus on Sri Lanka’s Eastern Province rail network, serving the coastal city of Trincomalee and linking it to major inland hubs.
  • C. Vavuniya railway station
    Vavuniya railway station is a key railway hub in northern Sri Lanka, serving as an important junction on the island’s main line between the south and the Jaffna Peninsula.
  • 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. Maradana railway station
    Maradana railway station is a major railway hub in Colombo, Sri Lanka, serving as one of the city’s primary junctions connecting multiple key lines 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: Batticaloa railway station
Triple: [Kandy railway station, connectsTo, Batticaloa railway station]
Generated description
Batticaloa railway station is a major rail terminus in eastern Sri Lanka serving the city of Batticaloa and linking it to the country’s central and western regions.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Batticaloa railway station
Target entity description: Batticaloa railway station is a major rail terminus in eastern Sri Lanka serving the city of Batticaloa and linking it to the country’s central and western regions.
  • A. Jaffna railway station
    Jaffna railway station is a major rail hub in northern Sri Lanka, serving the city of Jaffna and connecting it to Colombo and other key destinations on the island’s rail network.
  • B. Trincomalee railway station
    Trincomalee railway station is a key terminus on Sri Lanka’s Eastern Province rail network, serving the coastal city of Trincomalee and linking it to major inland hubs.
  • C. Vavuniya railway station
    Vavuniya railway station is a key railway hub in northern Sri Lanka, serving as an important junction on the island’s main line between the south and the Jaffna Peninsula.
  • 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. Maradana railway station
    Maradana railway station is a major railway hub in Colombo, Sri Lanka, serving as one of the city’s primary junctions connecting multiple key lines 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_69d889d520008190a26917a95bf1c2ea completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e43a4e3c3481909dfaa00334c5010e completed April 19, 2026, 2:13 a.m.
NED1 Entity disambiguation (via context triple) batch_6a01e806a5548190bad1985a55382758 completed May 11, 2026, 2:30 p.m.
NEDg Description generation batch_6a01ef5eba508190b35876cc60b0dc60 completed May 11, 2026, 3:01 p.m.
NED2 Entity disambiguation (via description) batch_6a01ef87c62c8190b9a3cd936542d7b4 completed May 11, 2026, 3:02 p.m.
Created at: April 10, 2026, 5:44 a.m.