Triple

T12982894
Position Surface form Disambiguated ID Type / Status
Subject Sri Lanka Railways E321694 entity
Predicate precededBy P97 FINISHED
Object Ceylon Government Railway
Ceylon Government Railway was the colonial-era state railway system of Ceylon (now Sri Lanka), established under British rule to develop inland transport and support plantation agriculture.
E321694 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: Ceylon Government Railway | Statement: [Sri Lanka Railways, precededBy, Ceylon Government Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ceylon Government Railway
Context triple: [Sri Lanka Railways, precededBy, Ceylon Government Railway]
  • A. Sri Lanka Railways
    Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
  • B. Madras Railway Company
    The Madras Railway Company was a British-era railway company in colonial India that developed and operated key rail lines in southern India, including the early construction of the Nilgiri Mountain Railway.
  • C. 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.
  • D. East Indian Railway Company
    The East Indian Railway Company was a major British colonial-era railway company that built and operated key rail lines in eastern and northern India during the 19th and early 20th centuries.
  • E. Myanma Railways
    Myanma Railways is the state-owned national railway operator of Myanmar, responsible for the country’s passenger and freight rail services and infrastructure.
  • 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: Ceylon Government Railway
Triple: [Sri Lanka Railways, precededBy, Ceylon Government Railway]
Generated description
Ceylon Government Railway was the colonial-era state railway system of Ceylon (now Sri Lanka), established under British rule to develop inland transport and support plantation agriculture.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ceylon Government Railway
Target entity description: Ceylon Government Railway was the colonial-era state railway system of Ceylon (now Sri Lanka), established under British rule to develop inland transport and support plantation agriculture.
  • A. Sri Lanka Railways chosen
    Sri Lanka Railways is the state-owned national railway operator of Sri Lanka, providing passenger and freight rail services across the country.
  • B. Madras Railway Company
    The Madras Railway Company was a British-era railway company in colonial India that developed and operated key rail lines in southern India, including the early construction of the Nilgiri Mountain Railway.
  • C. 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.
  • D. East Indian Railway Company
    The East Indian Railway Company was a major British colonial-era railway company that built and operated key rail lines in eastern and northern India during the 19th and early 20th centuries.
  • E. Myanma Railways
    Myanma Railways is the state-owned national railway operator of Myanmar, responsible for the country’s passenger and freight rail services and infrastructure.
  • F. None of above.

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_69d8076479b8819090afce3591939cdf completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69d97e5ca33481909a6cb06c636889f9 completed April 10, 2026, 10:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6cbc277c881909ae77e8a44e06986 completed May 3, 2026, 4:14 a.m.
NEDg Description generation batch_69f6cea882d48190add88a8463f7d544 completed May 3, 2026, 4:27 a.m.
NED2 Entity disambiguation (via description) batch_69f6cf72a0cc8190bf8b6d606b8d0987 completed May 3, 2026, 4:30 a.m.
Created at: April 9, 2026, 8:39 p.m.