Triple

T13036618
Position Surface form Disambiguated ID Type / Status
Subject Southern Railway zone E326576 entity
Predicate notableRoute P22 FINISHED
Object Chennai–Coimbatore line E675773 NE FINISHED

How this triple was built (2 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: Chennai–Coimbatore line | Statement: [Southern Railway zone, notableRoute, Chennai–Coimbatore line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chennai–Coimbatore line
Context triple: [Southern Railway zone, notableRoute, Chennai–Coimbatore line]
  • A. Chennai–Coimbatore line chosen
    The Chennai–Coimbatore line is a major railway route in the Indian state of Tamil Nadu that connects the state capital Chennai with the industrial city of Coimbatore, serving as a key corridor for both passenger and freight traffic.
  • B. Chennai–Tiruchirappalli line
    The Chennai–Tiruchirappalli line is a major electrified broad-gauge railway corridor in Tamil Nadu, India, connecting the state capital Chennai with the important inland city of Tiruchirappalli and forming part of the busy Southern Railway network.
  • C. Chennai–Madurai line
    The Chennai–Madurai line is a major railway route in the Indian state of Tamil Nadu that connects the capital city Chennai with the important cultural and commercial center of Madurai.
  • D. Tiruchirappalli–Dindigul line
    The Tiruchirappalli–Dindigul line is a key broad-gauge railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Dindigul and serving as an important link in the Southern Railway network.
  • E. Tiruchirappalli–Madurai line
    The Tiruchirappalli–Madurai line is a key railway route in the Indian state of Tamil Nadu that connects the major cities of Tiruchirappalli and Madurai, serving as an important corridor for both passenger and freight traffic.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69d8076cc45c81908123123f43e69266 completed April 9, 2026, 8:09 p.m.
NER Named-entity recognition batch_69d97f2a71a0819098bb6cf8a4b2208a completed April 10, 2026, 10:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69f6ead25b7c8190af2ccf26b44c2ea2 completed May 3, 2026, 6:27 a.m.
Created at: April 9, 2026, 8:55 p.m.