Triple

T13480196
Position Surface form Disambiguated ID Type / Status
Subject Up-Country E318351 entity
Predicate transportConnection P1298 FINISHED
Object Colombo–Badulla railway line
The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
 E1042445 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–Badulla railway line | Statement: [Up-Country, transportConnection, Colombo–Badulla railway line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Colombo–Badulla railway line
Context triple: [Up-Country, transportConnection, Colombo–Badulla railway line]
  • A. 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.
  • 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. 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.
  • D. Colombo–Batticaloa route
    The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
  • E. Colombo–Trincomalee route
    The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
  • 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–Badulla railway line
Triple: [Up-Country, transportConnection, Colombo–Badulla railway line]
Generated description
The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Colombo–Badulla railway line
Target entity description: The Colombo–Badulla railway line is a scenic Sri Lankan rail route that winds through the island’s central highlands, connecting the capital region with the mountainous Up-Country area.
  • A. 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.
  • 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. 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.
  • D. Colombo–Batticaloa route
    The Colombo–Batticaloa route is a major intercity railway line in Sri Lanka that connects the capital Colombo with the eastern city of Batticaloa, traversing diverse regions across the island.
  • E. Colombo–Trincomalee route
    The Colombo–Trincomalee route is a major intercity railway line in Sri Lanka connecting the capital Colombo with the eastern port city of Trincomalee.
  • 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_69d806b6bfec819089222715b2e86c8e completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69dbaf36c6b08190ba99400600e0b662 completed April 12, 2026, 2:41 p.m.
NED1 Entity disambiguation (via context triple) batch_69f7463340fc8190b1128bd1d26f91ab completed May 3, 2026, 12:57 p.m.
NEDg Description generation batch_69f747fee42c819097ccfaf01b1bf4da completed May 3, 2026, 1:05 p.m.
NED2 Entity disambiguation (via description) batch_69f748bfc1a481908c3a86018533e45d completed May 3, 2026, 1:08 p.m.
Created at: April 9, 2026, 9:42 p.m.