Triple

T14624533
Position Surface form Disambiguated ID Type / Status
Subject Chennai Suburban Railway E343310 entity
Predicate hasLine P35 FINISHED
Object Chennai Central–Gummidipoondi–Sullurpeta line E1086688 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 Central–Gummidipoondi–Sullurpeta line | Statement: [Chennai Suburban Railway, hasLine, Chennai Central–Gummidipoondi–Sullurpeta line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chennai Central–Gummidipoondi–Sullurpeta line
Context triple: [Chennai Suburban Railway, hasLine, Chennai Central–Gummidipoondi–Sullurpeta line]
  • A. Chennai Central–Gummidipundi line chosen
    The Chennai Central–Gummidipundi line is a suburban railway corridor in the Chennai metropolitan area that connects Chennai Central with the northern suburb of Gummidipundi, serving daily commuters and regional passengers.
  • B. Chennai Central–Arakkonam line
    The Chennai Central–Arakkonam line is a major suburban and intercity railway corridor in Tamil Nadu, India, connecting Chennai with the town of Arakkonam and forming part of the busy Chennai railway network.
  • C. Chennai Central–Katpadi–Jolarpettai line
    The Chennai Central–Katpadi–Jolarpettai line is a key railway corridor in Tamil Nadu that connects Chennai with important inland junctions, supporting both long-distance and regional rail traffic.
  • D. 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.
  • E. Chennai Egmore–Villupuram line
    The Chennai Egmore–Villupuram line is a key railway corridor in Tamil Nadu connecting Chennai with the southern parts of the state and serving as an important route for both passenger and freight trains.
  • 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_69d822dffc3c8190aa173b90761bffda completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69deb468acc4819083b7e818d5cec809 completed April 14, 2026, 9:40 p.m.
NED1 Entity disambiguation (via context triple) batch_69fdd5d0514081908c2bdc4fb77b1a7a completed May 8, 2026, 12:23 p.m.
Created at: April 10, 2026, 1:26 a.m.