Triple

T22340985
Position Surface form Disambiguated ID Type / Status
Subject Buxar railway station E552272 entity
Predicate locatedOn P40 FINISHED
Object Howrah–Patna–Delhi main line
The Howrah–Patna–Delhi main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with the national capital Delhi via Patna, serving as a key corridor for both passenger and freight traffic in eastern and northern India.
E520995 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–Patna–Delhi main line | Statement: [Buxar railway station, locatedOn, Howrah–Patna–Delhi main line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Howrah–Patna–Delhi main line
Context triple: [Buxar railway station, locatedOn, Howrah–Patna–Delhi main line]
  • A. Howrah–Delhi main line
    The Howrah–Delhi main line is one of India's busiest and most important railway corridors, connecting Kolkata (Howrah) with the national capital New Delhi and passing through major cities across northern and eastern India.
  • B. Howrah–Prayagraj–Mumbai line
    The Howrah–Prayagraj–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Prayagraj, passing through key junctions across northern and central India.
  • C. Howrah–Bardhaman main line
    The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
  • D. Howrah–Chennai main line
    The Howrah–Chennai main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with Chennai along the eastern coast, serving as a key corridor for both passenger and freight traffic.
  • E. Howrah–Kharagpur railway line
    The Howrah–Kharagpur railway line is a major suburban and long-distance rail corridor in West Bengal, India, connecting the metropolitan hub of Howrah (Kolkata) with the industrial town of Kharagpur and serving numerous intermediate towns and junctions.
  • 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–Patna–Delhi main line
Triple: [Buxar railway station, locatedOn, Howrah–Patna–Delhi main line]
Generated description
The Howrah–Patna–Delhi main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with the national capital Delhi via Patna, serving as a key corridor for both passenger and freight traffic in eastern and northern India.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Howrah–Patna–Delhi main line
Target entity description: The Howrah–Patna–Delhi main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with the national capital Delhi via Patna, serving as a key corridor for both passenger and freight traffic in eastern and northern India.
  • A. Howrah–Delhi main line chosen
    The Howrah–Delhi main line is one of India's busiest and most important railway corridors, connecting Kolkata (Howrah) with the national capital New Delhi and passing through major cities across northern and eastern India.
  • B. Howrah–Prayagraj–Mumbai line
    The Howrah–Prayagraj–Mumbai line is a major Indian Railways trunk route connecting Kolkata (Howrah) in the east with Mumbai in the west via Prayagraj, passing through key junctions across northern and central India.
  • C. Howrah–Bardhaman main line
    The Howrah–Bardhaman main line is a major suburban and long-distance railway corridor in West Bengal, India, connecting Howrah (Kolkata) with Bardhaman and serving numerous important towns along the route.
  • D. Howrah–Chennai main line
    The Howrah–Chennai main line is a major Indian Railways trunk route connecting Kolkata (Howrah) with Chennai along the eastern coast, serving as a key corridor for both passenger and freight traffic.
  • E. Howrah–Kharagpur railway line
    The Howrah–Kharagpur railway line is a major suburban and long-distance rail corridor in West Bengal, India, connecting the metropolitan hub of Howrah (Kolkata) with the industrial town of Kharagpur and serving numerous intermediate towns and junctions.
  • 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_69e11e494eec81909c4d2d51f69499d9 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f15783637c8190b77885f4e23d7ee5 completed April 29, 2026, 12:57 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0b3d420ce88190917c000b08d011df completed May 18, 2026, 4:24 p.m.
NEDg Description generation batch_6a0b416f94b88190b5bdc34752843ae2 completed May 18, 2026, 4:42 p.m.
NED2 Entity disambiguation (via description) batch_6a0b41db5d6481908dcd88d1c3376aae completed May 18, 2026, 4:44 p.m.
Created at: April 16, 2026, 8:43 p.m.