Triple

T18884429
Position Surface form Disambiguated ID Type / Status
Subject 1964 Rameswaram cyclone E461921 entity
Predicate destroyed P5325 FINISHED
Object Pamban–Dhanushkodi rail track — 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: Pamban–Dhanushkodi rail track | Statement: [1964 Rameswaram cyclone, destroyed, Pamban–Dhanushkodi rail track]

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: Pamban–Dhanushkodi rail track
Context triple: [1964 Rameswaram cyclone, destroyed, Pamban–Dhanushkodi rail track]
  • 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. Pamban Bridge
    Pamban Bridge is a historic sea bridge in Tamil Nadu, India, that connects the island of Rameswaram to the mainland and is renowned for its iconic cantilevered railway section over the Palk Strait.
  • C. 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.
  • D. Shoranur bridge
    Shoranur bridge is a major railway and road bridge in Kerala, India, that serves as an important transport link across the Bharathapuzha River.
  • E. Padma Bridge
    Padma Bridge is a major multipurpose road-rail bridge in Bangladesh that significantly improves connectivity between the country's southwestern region and the capital, Dhaka.
  • 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.