Triple

T18884428
Position Surface form Disambiguated ID Type / Status
Subject 1964 Rameswaram cyclone E461921 entity
Predicate destroyed P5325 FINISHED
Object Rameswaram–Dhanushkodi railway line — NE NERFINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Rameswaram–Dhanushkodi railway line | Statement: [1964 Rameswaram cyclone, destroyed, Rameswaram–Dhanushkodi railway line]

Disambiguation candidates (1 decision)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Rameswaram–Dhanushkodi railway line
Context triple: [1964 Rameswaram cyclone, destroyed, Rameswaram–Dhanushkodi railway line]
  • A. Rameswaram–Mandapam rail line chosen
    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.
  • B. Chennai–Rameswaram line
    The Chennai–Rameswaram line is a major railway route in the Indian state of Tamil Nadu that connects the state capital Chennai with the pilgrimage island town of Rameswaram, passing through several key inland towns.
  • C. Jolarpettai–Shoranur line
    The Jolarpettai–Shoranur line is a major broad-gauge railway route in southern India that connects Tamil Nadu with Kerala, serving as an important corridor for both passenger and freight traffic.
  • D. 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.
  • E. Thanjavur–Nagapattinam line
    The Thanjavur–Nagapattinam line is a railway route in the Indian state of Tamil Nadu that connects the inland cultural hub of Thanjavur with the coastal town of Nagapattinam.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 batches)

Stage Batch ID Job type Status
creating batch_69d8dcfc3430819095ee6fc0eb4c06a5 elicitation completed
NER batch_69e5c3d3dcec8190a468162c6a4482f6 ner completed
Created at: April 10, 2026, 11:57 a.m.