Triple

T14882760
Position Surface form Disambiguated ID Type / Status
Subject Sealdah–Ranaghat line E350039 entity
Predicate belongsToCorridor P37 FINISHED
Object Sealdah suburban corridor
The Sealdah suburban corridor is a major suburban railway network in the Kolkata metropolitan area, serving dense commuter traffic across multiple lines radiating from Sealdah station.
 E1134199 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: Sealdah suburban corridor | Statement: [Sealdah–Ranaghat line, belongsToCorridor, Sealdah suburban corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Sealdah suburban corridor
Context triple: [Sealdah–Ranaghat line, belongsToCorridor, Sealdah suburban corridor]
  • A. Sealdah–Hasnabad railway line
    The Sealdah–Hasnabad railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah with Hasnabad and serving numerous intermediate stations including Dum Dum.
  • B. Sealdah–Dankuni line
    The Sealdah–Dankuni line is a suburban railway corridor in the Kolkata metropolitan area that connects Sealdah with Dankuni, serving as a key commuter route in West Bengal, India.
  • C. Sealdah–Kalyani line
    The Sealdah–Kalyani line is a suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station in central Kolkata with the town of Kalyani and serving daily commuter traffic.
  • D. Howrah–Tarakeswar line
    The Howrah–Tarakeswar line is a suburban railway corridor in West Bengal, India, connecting Howrah with the temple town of Tarakeswar and forming part of the Kolkata Suburban Railway network.
  • E. Sealdah–Bangaon railway line
    The Sealdah–Bangaon railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Bangaon and serving numerous intermediate urban and suburban localities.
  • 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: Sealdah suburban corridor
Triple: [Sealdah–Ranaghat line, belongsToCorridor, Sealdah suburban corridor]
Generated description
The Sealdah suburban corridor is a major suburban railway network in the Kolkata metropolitan area, serving dense commuter traffic across multiple lines radiating from Sealdah station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Sealdah suburban corridor
Target entity description: The Sealdah suburban corridor is a major suburban railway network in the Kolkata metropolitan area, serving dense commuter traffic across multiple lines radiating from Sealdah station.
  • A. Sealdah–Hasnabad railway line
    The Sealdah–Hasnabad railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah with Hasnabad and serving numerous intermediate stations including Dum Dum.
  • B. Sealdah–Dankuni line
    The Sealdah–Dankuni line is a suburban railway corridor in the Kolkata metropolitan area that connects Sealdah with Dankuni, serving as a key commuter route in West Bengal, India.
  • C. Sealdah–Kalyani line
    The Sealdah–Kalyani line is a suburban railway corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station in central Kolkata with the town of Kalyani and serving daily commuter traffic.
  • D. Howrah–Tarakeswar line
    The Howrah–Tarakeswar line is a suburban railway corridor in West Bengal, India, connecting Howrah with the temple town of Tarakeswar and forming part of the Kolkata Suburban Railway network.
  • E. Sealdah–Bangaon railway line
    The Sealdah–Bangaon railway line is a suburban rail corridor in the Kolkata metropolitan area of West Bengal, India, connecting Sealdah station with Bangaon and serving numerous intermediate urban and suburban localities.
  • 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_69d822ee4f408190b6ac3b2fa434f0df completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69ded5e7c0e48190af2d68a71130585c completed April 15, 2026, 12:03 a.m.
NED1 Entity disambiguation (via context triple) batch_69fe9dbf1f5c8190ad4626d14e0d8109 completed May 9, 2026, 2:36 a.m.
NEDg Description generation batch_69fea10834ac8190b4fbd0a165439110 completed May 9, 2026, 2:50 a.m.
NED2 Entity disambiguation (via description) batch_69fea19745c08190b0efd33ee3f97fe1 completed May 9, 2026, 2:53 a.m.
Created at: April 10, 2026, 1:56 a.m.