Triple

T18483862
Position Surface form Disambiguated ID Type / Status
Subject Ambala–Attari line E451633 entity
Predicate connectsTo P845 FINISHED
Object Ambala–Ludhiana section
The Ambala–Ludhiana section is a key railway corridor in northern India that links the city of Ambala in Haryana with Ludhiana in Punjab, serving as part of an important route for both passenger and freight traffic.
E1328444 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: Ambala–Ludhiana section | Statement: [Ambala–Attari line, connectsTo, Ambala–Ludhiana section]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ambala–Ludhiana section
Context triple: [Ambala–Attari line, connectsTo, Ambala–Ludhiana section]
  • A. Ludhiana–Jalandhar section
    The Ludhiana–Jalandhar section is a key railway corridor in the Indian state of Punjab that links the industrial city of Ludhiana with the major urban center of Jalandhar, forming part of an important route in northern India.
  • B. Jalandhar–Amritsar section
    The Jalandhar–Amritsar section is a key railway corridor in the Indian state of Punjab that links the city of Jalandhar with the major cultural and religious center of Amritsar.
  • C. Delhi–Panipat section
    The Delhi–Panipat section is a key railway corridor in northern India that links the national capital Delhi with the industrial and historical city of Panipat, forming part of a major route toward Punjab.
  • D. Delhi–Ambala–Kalka route
    The Delhi–Ambala–Kalka route is a major railway corridor in northern India connecting the national capital Delhi with the cities of Ambala and Kalka, serving as a key link for both passenger and freight traffic.
  • E. Meerut–Muzaffarnagar–Saharanpur section
    The Meerut–Muzaffarnagar–Saharanpur section is a key railway corridor in northern India that connects major cities in western Uttar Pradesh and forms part of important regional and long-distance routes.
  • 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: Ambala–Ludhiana section
Triple: [Ambala–Attari line, connectsTo, Ambala–Ludhiana section]
Generated description
The Ambala–Ludhiana section is a key railway corridor in northern India that links the city of Ambala in Haryana with Ludhiana in Punjab, serving as part of an important route for both passenger and freight traffic.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ambala–Ludhiana section
Target entity description: The Ambala–Ludhiana section is a key railway corridor in northern India that links the city of Ambala in Haryana with Ludhiana in Punjab, serving as part of an important route for both passenger and freight traffic.
  • A. Ludhiana–Jalandhar section
    The Ludhiana–Jalandhar section is a key railway corridor in the Indian state of Punjab that links the industrial city of Ludhiana with the major urban center of Jalandhar, forming part of an important route in northern India.
  • B. Jalandhar–Amritsar section
    The Jalandhar–Amritsar section is a key railway corridor in the Indian state of Punjab that links the city of Jalandhar with the major cultural and religious center of Amritsar.
  • C. Delhi–Panipat section
    The Delhi–Panipat section is a key railway corridor in northern India that links the national capital Delhi with the industrial and historical city of Panipat, forming part of a major route toward Punjab.
  • D. Delhi–Ambala–Kalka route
    The Delhi–Ambala–Kalka route is a major railway corridor in northern India connecting the national capital Delhi with the cities of Ambala and Kalka, serving as a key link for both passenger and freight traffic.
  • E. Meerut–Muzaffarnagar–Saharanpur section
    The Meerut–Muzaffarnagar–Saharanpur section is a key railway corridor in northern India that connects major cities in western Uttar Pradesh and forms part of important regional and long-distance routes.
  • 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_69d8d38465a0819099b9b42d2a662ac1 completed April 10, 2026, 10:40 a.m.
NER Named-entity recognition batch_69e531d5951c81909f44362bc4101333 completed April 19, 2026, 7:49 p.m.
NED1 Entity disambiguation (via context triple) batch_6a0491633978819092820daa682164fd completed May 13, 2026, 2:57 p.m.
NEDg Description generation batch_6a04920be21881908f8aac148aa0ae4d completed May 13, 2026, 3 p.m.
NED2 Entity disambiguation (via description) batch_6a0492a5f9148190911747f8d50540e3 completed May 13, 2026, 3:03 p.m.
Created at: April 10, 2026, 11:35 a.m.