Triple

T9160983
Position Surface form Disambiguated ID Type / Status
Subject Vellore E219819 entity
Predicate transport P230 FINISHED
Object Katpadi Junction railway station
Katpadi Junction railway station is a major railway hub in Tamil Nadu, India, serving the city of Vellore and acting as an important junction on routes connecting Chennai with southern and western parts of the country.
 E782637 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: Katpadi Junction railway station | Statement: [Vellore, transport, Katpadi Junction railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Katpadi Junction railway station
Context triple: [Vellore, transport, Katpadi Junction railway station]
  • A. Kanchrapara railway station
    Kanchrapara railway station is a suburban railway station in West Bengal, India, serving the town of Kanchrapara on the Kolkata Suburban Railway network.
  • B. Purna Junction railway station
    Purna Junction railway station is a key railway junction in Maharashtra, India, serving as an important transit point for passenger and freight trains within the South Central Railway network.
  • C. Balaghat Junction railway station
    Balaghat Junction railway station is a key railway hub in Madhya Pradesh, India, serving the town of Balaghat and connecting it to regional and national rail networks.
  • D. Satna Junction railway station
    Satna Junction railway station is a major rail hub in Madhya Pradesh, India, serving the city of Satna and connecting it to key routes across the Indian Railways network.
  • E. Ballari Junction railway station
    Ballari Junction railway station is a major railway hub in the city of Ballari in Karnataka, India, serving as an important junction for regional and long-distance train services.
  • 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: Katpadi Junction railway station
Triple: [Vellore, transport, Katpadi Junction railway station]
Generated description
Katpadi Junction railway station is a major railway hub in Tamil Nadu, India, serving the city of Vellore and acting as an important junction on routes connecting Chennai with southern and western parts of the country.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Katpadi Junction railway station
Target entity description: Katpadi Junction railway station is a major railway hub in Tamil Nadu, India, serving the city of Vellore and acting as an important junction on routes connecting Chennai with southern and western parts of the country.
  • A. Kanchrapara railway station
    Kanchrapara railway station is a suburban railway station in West Bengal, India, serving the town of Kanchrapara on the Kolkata Suburban Railway network.
  • B. Purna Junction railway station
    Purna Junction railway station is a key railway junction in Maharashtra, India, serving as an important transit point for passenger and freight trains within the South Central Railway network.
  • C. Balaghat Junction railway station
    Balaghat Junction railway station is a key railway hub in Madhya Pradesh, India, serving the town of Balaghat and connecting it to regional and national rail networks.
  • D. Satna Junction railway station
    Satna Junction railway station is a major rail hub in Madhya Pradesh, India, serving the city of Satna and connecting it to key routes across the Indian Railways network.
  • E. Ballari Junction railway station
    Ballari Junction railway station is a major railway hub in the city of Ballari in Karnataka, India, serving as an important junction for regional and long-distance train services.
  • 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_69ca83e3633c81908688a9fa2306ba99 completed March 30, 2026, 2:08 p.m.
NER Named-entity recognition batch_69ccaa2ac0508190b2f5c801c2c26d66 completed April 1, 2026, 5:16 a.m.
NED1 Entity disambiguation (via context triple) batch_69d0547073cc8190999fe640c7ccd373 completed April 3, 2026, 11:59 p.m.
NEDg Description generation batch_69d05560d6888190b4faf3406f9ff9f2 completed April 4, 2026, 12:03 a.m.
NED2 Entity disambiguation (via description) batch_69d059161a1881909ceaaf8b0893dbea completed April 4, 2026, 12:19 a.m.
Created at: March 30, 2026, 7:21 p.m.