Triple

T8807463
Position Surface form Disambiguated ID Type / Status
Subject Howrah–Nagpur–Mumbai line E209568 entity
Predicate partOf P40 FINISHED
Object Howrah–Delhi–Mumbai corridor
The Howrah–Delhi–Mumbai corridor is a major Indian railway trunk route linking Kolkata (Howrah), the national capital Delhi, and Mumbai, serving as a key axis for long-distance passenger and freight traffic across northern and central India.
E157731 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: Howrah–Delhi–Mumbai corridor | Statement: [Howrah–Nagpur–Mumbai line, partOf, Howrah–Delhi–Mumbai corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Howrah–Delhi–Mumbai corridor
Context triple: [Howrah–Nagpur–Mumbai line, partOf, Howrah–Delhi–Mumbai corridor]
  • A. Delhi–Kolkata rail corridor
    The Delhi–Kolkata rail corridor is one of India’s busiest and most important railway routes, linking the national capital with the eastern metropolis through major northern and eastern cities.
  • B. 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.
  • C. Chennai–Kolkata railway corridor
    The Chennai–Kolkata railway corridor is a major Indian rail route connecting the southeastern metropolis of Chennai with the eastern city of Kolkata, serving as a key artery for passenger and freight transport along the east coast.
  • D. Mumbai–Ahmedabad–Delhi main line
    The Mumbai–Ahmedabad–Delhi main line is a major Indian Railways trunk route that connects Mumbai with Ahmedabad and Delhi, serving as a key corridor for long-distance passenger and freight traffic in western and northern India.
  • E. Kolkata–Mumbai highway
    The Kolkata–Mumbai highway is a major arterial road in India that forms part of the east–west corridor linking the eastern metropolis of Kolkata with the western financial hub of Mumbai.
  • 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: Howrah–Delhi–Mumbai corridor
Triple: [Howrah–Nagpur–Mumbai line, partOf, Howrah–Delhi–Mumbai corridor]
Generated description
The Howrah–Delhi–Mumbai corridor is a major Indian railway trunk route linking Kolkata (Howrah), the national capital Delhi, and Mumbai, serving as a key axis for long-distance passenger and freight traffic across northern and central India.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Howrah–Delhi–Mumbai corridor
Target entity description: The Howrah–Delhi–Mumbai corridor is a major Indian railway trunk route linking Kolkata (Howrah), the national capital Delhi, and Mumbai, serving as a key axis for long-distance passenger and freight traffic across northern and central India.
  • A. Delhi–Kolkata rail corridor chosen
    The Delhi–Kolkata rail corridor is one of India’s busiest and most important railway routes, linking the national capital with the eastern metropolis through major northern and eastern cities.
  • B. 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.
  • C. Chennai–Kolkata railway corridor
    The Chennai–Kolkata railway corridor is a major Indian rail route connecting the southeastern metropolis of Chennai with the eastern city of Kolkata, serving as a key artery for passenger and freight transport along the east coast.
  • D. Mumbai–Ahmedabad–Delhi main line
    The Mumbai–Ahmedabad–Delhi main line is a major Indian Railways trunk route that connects Mumbai with Ahmedabad and Delhi, serving as a key corridor for long-distance passenger and freight traffic in western and northern India.
  • E. Kolkata–Mumbai highway
    The Kolkata–Mumbai highway is a major arterial road in India that forms part of the east–west corridor linking the eastern metropolis of Kolkata with the western financial hub of Mumbai.
  • 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_69ca836320e48190b5cf585b90a322c4 completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc5fd2fadc81908b27e9296885af2b completed March 31, 2026, 11:59 p.m.
NED1 Entity disambiguation (via context triple) batch_69cf8921a13081909346b97c024110b6 completed April 3, 2026, 9:32 a.m.
NEDg Description generation batch_69cf8a8c87dc81909d5c0d769341b17c completed April 3, 2026, 9:38 a.m.
NED2 Entity disambiguation (via description) batch_69cf8b79a0b48190a29491f5f8f81217 completed April 3, 2026, 9:42 a.m.
Created at: March 30, 2026, 6:45 p.m.