Triple

T11377512
Position Surface form Disambiguated ID Type / Status
Subject Central Railway zone E269507 entity
Predicate formedByMergerOf P77 FINISHED
Object Great Indian Peninsula Railway
The Great Indian Peninsula Railway was one of the earliest and most important railway companies in colonial India, instrumental in developing the rail network across western and central regions of the subcontinent.
E268124 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: Great Indian Peninsula Railway | Statement: [Central Railway zone, formedByMergerOf, Great Indian Peninsula Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Great Indian Peninsula Railway
Context triple: [Central Railway zone, formedByMergerOf, Great Indian Peninsula Railway]
  • A. Central Railway
    Central Railway is one of the major zones of Indian Railways, headquartered in Mumbai and responsible for operating key rail routes and suburban services in western and central India.
  • B. Bombay, Baroda and Central India Railway
    The Bombay, Baroda and Central India Railway was a major British-era Indian railway company that operated extensive routes in western and central India before being absorbed into the Western Railway zone after independence.
  • C. Mumbai–Pune railway line
    The Mumbai–Pune railway line is a major rail corridor in Maharashtra, India, connecting the metropolitan city of Mumbai with the industrial and educational hub of Pune through the Western Ghats.
  • D. Delhi–Mumbai line
    The Delhi–Mumbai line is one of India’s busiest and most important railway corridors, connecting the national capital New Delhi with the financial hub Mumbai and passing through major cities in northern and western India.
  • E. Howrah–Nagpur–Mumbai line
    The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
  • 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: Great Indian Peninsula Railway
Triple: [Central Railway zone, formedByMergerOf, Great Indian Peninsula Railway]
Generated description
The Great Indian Peninsula Railway was one of the earliest and most important railway companies in colonial India, instrumental in developing the rail network across western and central regions of the subcontinent.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Great Indian Peninsula Railway
Target entity description: The Great Indian Peninsula Railway was one of the earliest and most important railway companies in colonial India, instrumental in developing the rail network across western and central regions of the subcontinent.
  • A. Central Railway chosen
    Central Railway is one of the major zones of Indian Railways, headquartered in Mumbai and responsible for operating key rail routes and suburban services in western and central India.
  • B. Bombay, Baroda and Central India Railway
    The Bombay, Baroda and Central India Railway was a major British-era Indian railway company that operated extensive routes in western and central India before being absorbed into the Western Railway zone after independence.
  • C. Mumbai–Pune railway line
    The Mumbai–Pune railway line is a major rail corridor in Maharashtra, India, connecting the metropolitan city of Mumbai with the industrial and educational hub of Pune through the Western Ghats.
  • D. Delhi–Mumbai line
    The Delhi–Mumbai line is one of India’s busiest and most important railway corridors, connecting the national capital New Delhi with the financial hub Mumbai and passing through major cities in northern and western India.
  • E. Howrah–Nagpur–Mumbai line
    The Howrah–Nagpur–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Nagpur, serving as a key corridor for both passenger and freight traffic across central India.
  • 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_69d6aacca1048190b39dbbc2174616fa completed April 8, 2026, 7:21 p.m.
NER Named-entity recognition batch_69d7fc30f5d48190bb273df4c9e583a9 completed April 9, 2026, 7:21 p.m.
NED1 Entity disambiguation (via context triple) batch_69e6e72931208190b91ef4be770c00d4 completed April 21, 2026, 2:55 a.m.
NEDg Description generation batch_69e6ef8fca248190bc2fdd8457258874 completed April 21, 2026, 3:31 a.m.
NED2 Entity disambiguation (via description) batch_69e6f8ec88e88190bfa21c2d06d67bd8 completed April 21, 2026, 4:11 a.m.
Created at: April 8, 2026, 9:33 p.m.