Triple

T18538383
Position Surface form Disambiguated ID Type / Status
Subject Midnapore railway station E453023 entity
Predicate locatedOnLine P2409 FINISHED
Object Howrah–Adra–Chakradharpur line
The Howrah–Adra–Chakradharpur line is a major railway route in eastern India that connects Howrah in West Bengal with Chakradharpur in Jharkhand via Adra, serving as an important corridor for both passenger and freight traffic.
E1330412 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–Adra–Chakradharpur line | Statement: [Midnapore railway station, locatedOnLine, Howrah–Adra–Chakradharpur line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Howrah–Adra–Chakradharpur line
Context triple: [Midnapore railway station, locatedOnLine, Howrah–Adra–Chakradharpur line]
  • A. Kharagpur–Bankura–Adra line
    The Kharagpur–Bankura–Adra line is a railway route in the Indian state of West Bengal that connects Kharagpur with Adra via Bankura, serving as an important regional link for passenger and freight traffic.
  • B. Naihati–Ranaghat line
    The Naihati–Ranaghat line is a suburban railway corridor in West Bengal, India, forming part of the Kolkata Suburban Railway network and connecting key towns along the Hooghly and Nadia districts.
  • C. Kharagpur–Digha line
    The Kharagpur–Digha line is a railway route in eastern India that connects the major junction of Kharagpur with the coastal resort town of Digha, serving both local commuters and tourists.
  • D. 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.
  • E. Howrah–Azimganj line
    The Howrah–Azimganj line is a key railway route in the Indian state of West Bengal that connects Howrah with Azimganj, serving as an important corridor for both passenger and freight traffic in the region.
  • 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–Adra–Chakradharpur line
Triple: [Midnapore railway station, locatedOnLine, Howrah–Adra–Chakradharpur line]
Generated description
The Howrah–Adra–Chakradharpur line is a major railway route in eastern India that connects Howrah in West Bengal with Chakradharpur in Jharkhand via Adra, serving as an important corridor for both passenger and freight traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Howrah–Adra–Chakradharpur line
Target entity description: The Howrah–Adra–Chakradharpur line is a major railway route in eastern India that connects Howrah in West Bengal with Chakradharpur in Jharkhand via Adra, serving as an important corridor for both passenger and freight traffic.
  • A. Kharagpur–Bankura–Adra line
    The Kharagpur–Bankura–Adra line is a railway route in the Indian state of West Bengal that connects Kharagpur with Adra via Bankura, serving as an important regional link for passenger and freight traffic.
  • B. Naihati–Ranaghat line
    The Naihati–Ranaghat line is a suburban railway corridor in West Bengal, India, forming part of the Kolkata Suburban Railway network and connecting key towns along the Hooghly and Nadia districts.
  • C. Kharagpur–Digha line
    The Kharagpur–Digha line is a railway route in eastern India that connects the major junction of Kharagpur with the coastal resort town of Digha, serving both local commuters and tourists.
  • D. 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.
  • E. Howrah–Azimganj line
    The Howrah–Azimganj line is a key railway route in the Indian state of West Bengal that connects Howrah with Azimganj, serving as an important corridor for both passenger and freight traffic in the region.
  • 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_69d8d387b5548190aa030dad2cb4947e completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e534030bd88190b25b95305a12a0c1 completed April 19, 2026, 7:58 p.m.
NED1 Entity disambiguation (via context triple) batch_6a049ad81eb88190a2b0b57faa622e46 completed May 13, 2026, 3:38 p.m.
NEDg Description generation batch_6a049c86bd748190a10f6f720cc4c9eb completed May 13, 2026, 3:45 p.m.
NED2 Entity disambiguation (via description) batch_6a049e9f82d48190b375adef9fbfd1bd completed May 13, 2026, 3:54 p.m.
Created at: April 10, 2026, 11:37 a.m.