Triple

T7124002
Position Surface form Disambiguated ID Type / Status
Subject Tiruchirappalli Junction railway station E166013 entity
Predicate hasLine P35 FINISHED
Object 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.
E650319 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: Tiruchirappalli–Dindigul line | Statement: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Dindigul line
Context triple: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
  • A. 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.
  • B. Tiruchirappalli–Karur line
    The Tiruchirappalli–Karur line is a railway route in the Indian state of Tamil Nadu that connects the city of Tiruchirappalli with Karur, serving as an important regional link for passenger and freight traffic.
  • C. Tiruchirappalli–Thanjavur line
    The Tiruchirappalli–Thanjavur line is a key railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Thanjavur and serving as an important corridor for regional passenger and freight 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. Rameswaram–Mandapam rail line
    The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
  • 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: Tiruchirappalli–Dindigul line
Triple: [Tiruchirappalli Junction railway station, hasLine, Tiruchirappalli–Dindigul line]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Tiruchirappalli–Dindigul line
Target entity description: 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.
  • A. 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.
  • B. Tiruchirappalli–Karur line
    The Tiruchirappalli–Karur line is a railway route in the Indian state of Tamil Nadu that connects the city of Tiruchirappalli with Karur, serving as an important regional link for passenger and freight traffic.
  • C. Tiruchirappalli–Thanjavur line
    The Tiruchirappalli–Thanjavur line is a key railway route in Tamil Nadu, India, connecting the major cities of Tiruchirappalli and Thanjavur and serving as an important corridor for regional passenger and freight 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. Rameswaram–Mandapam rail line
    The Rameswaram–Mandapam rail line is a coastal railway route in Tamil Nadu, India, that connects the mainland to Rameswaram Island and includes the historic Pamban Bridge over the Palk Strait.
  • 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_69c6888350588190870cd552b427a1cd completed March 27, 2026, 1:39 p.m.
NER Named-entity recognition batch_69c6e64ab1f881908bc2468cc72d2544 completed March 27, 2026, 8:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69c7cbcf5f14819097a507bd64f1031f completed March 28, 2026, 12:38 p.m.
NEDg Description generation batch_69c7cc5af4f48190a146f7026307bfbe completed March 28, 2026, 12:40 p.m.
NED2 Entity disambiguation (via description) batch_69c7cd0eb36c8190bc8e4265033d214f completed March 28, 2026, 12:43 p.m.
Created at: March 27, 2026, 2:44 p.m.