Triple

T5798461
Position Surface form Disambiguated ID Type / Status
Subject Colombo Fort railway station E128563 entity
Predicate connectsTo P845 FINISHED
Object Kelani Valley Line
The Kelani Valley Line is a Sri Lankan railway line that runs from Colombo into the interior highlands, serving suburban and rural communities along the Kelani River basin.
E549055 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: Kelani Valley Line | Statement: [Colombo Fort railway station, connectsTo, Kelani Valley Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Kelani Valley Line
Context triple: [Colombo Fort railway station, connectsTo, Kelani Valley Line]
  • A. RTA Waterfront Line
    The RTA Waterfront Line is a light rail line in Cleveland, Ohio, that connects downtown with the city's waterfront attractions and nearby neighborhoods.
  • B. Onehunga Line
    The Onehunga Line is a suburban commuter rail service in Auckland, New Zealand, connecting the suburb of Onehunga with central city stations as part of the Auckland rail network.
  • C. East–West Line
    The East–West Line was the original name for what is now MARTA’s Blue Line, a major rapid transit route serving the Atlanta metropolitan area.
  • D. Valley Line
    The Valley Line is a light rail transit route in Edmonton, Alberta, designed as a low-floor, urban-style line connecting southeastern and western parts of the city.
  • E. Northeast Line
    The Northeast Line, now known as MARTA's Gold Line, is a rapid transit route serving key northeastern suburbs and neighborhoods of Atlanta, Georgia.
  • 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: Kelani Valley Line
Triple: [Colombo Fort railway station, connectsTo, Kelani Valley Line]
Generated description
The Kelani Valley Line is a Sri Lankan railway line that runs from Colombo into the interior highlands, serving suburban and rural communities along the Kelani River basin.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Kelani Valley Line
Target entity description: The Kelani Valley Line is a Sri Lankan railway line that runs from Colombo into the interior highlands, serving suburban and rural communities along the Kelani River basin.
  • A. RTA Waterfront Line
    The RTA Waterfront Line is a light rail line in Cleveland, Ohio, that connects downtown with the city's waterfront attractions and nearby neighborhoods.
  • B. Onehunga Line
    The Onehunga Line is a suburban commuter rail service in Auckland, New Zealand, connecting the suburb of Onehunga with central city stations as part of the Auckland rail network.
  • C. East–West Line
    The East–West Line was the original name for what is now MARTA’s Blue Line, a major rapid transit route serving the Atlanta metropolitan area.
  • D. Valley Line
    The Valley Line is a light rail transit route in Edmonton, Alberta, designed as a low-floor, urban-style line connecting southeastern and western parts of the city.
  • E. Northeast Line
    The Northeast Line, now known as MARTA's Gold Line, is a rapid transit route serving key northeastern suburbs and neighborhoods of Atlanta, Georgia.
  • 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_69c00845ca68819081a2ce3ecca577f7 completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c02a959b108190a7408560e1b34cd2 completed March 22, 2026, 5:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69c098302d4c81908b56747d304b3e6a completed March 23, 2026, 1:32 a.m.
NEDg Description generation batch_69c098d889e08190adbd12504a7f3fa1 completed March 23, 2026, 1:35 a.m.
NED2 Entity disambiguation (via description) batch_69c09990da18819099fdc8f25f2ddef2 completed March 23, 2026, 1:38 a.m.
Created at: March 22, 2026, 3:51 p.m.