Triple

T18884351
Position Surface form Disambiguated ID Type / Status
Subject Rameswaram–Mandapam rail line E461919 entity
Predicate terminus P388 FINISHED
Object Mandapam railway station — NE NERFINISHED

How this triple was built (3 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: Mandapam railway station | Statement: [Rameswaram–Mandapam rail line, terminus, Mandapam railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Mandapam railway station
Context triple: [Rameswaram–Mandapam rail line, terminus, Mandapam railway station]
  • A. Masala railway station
    Masala railway station is a commuter rail station serving the Masala district in the municipality of Kirkkonummi, Finland.
  • B. Tirupati railway station
    Tirupati railway station is a major rail hub in Andhra Pradesh, India, serving as the primary gateway for pilgrims visiting the famous Tirumala Venkateswara Temple.
  • C. Amravati railway station
    Amravati railway station is a key rail hub in Maharashtra, India, serving the city of Amravati and connecting it to major regional and national destinations.
  • D. Puri railway station
    Puri railway station is a major rail terminus in Odisha, India, serving the coastal city of Puri and its famous Jagannath Temple pilgrimage destination.
  • E. Sanpada railway station
    Sanpada railway station is a suburban rail station in Navi Mumbai, India, serving as a key commuter hub on Mumbai’s local railway network.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Mandapam railway station
Target entity description: Mandapam railway station is a coastal railhead in Tamil Nadu, India, serving as a key gateway to the pilgrimage island of Rameswaram via the Pamban Bridge.
  • A. Masala railway station
    Masala railway station is a commuter rail station serving the Masala district in the municipality of Kirkkonummi, Finland.
  • B. Tirupati railway station
    Tirupati railway station is a major rail hub in Andhra Pradesh, India, serving as the primary gateway for pilgrims visiting the famous Tirumala Venkateswara Temple.
  • C. Amravati railway station
    Amravati railway station is a key rail hub in Maharashtra, India, serving the city of Amravati and connecting it to major regional and national destinations.
  • D. Puri railway station
    Puri railway station is a major rail terminus in Odisha, India, serving the coastal city of Puri and its famous Jagannath Temple pilgrimage destination.
  • E. Sanpada railway station
    Sanpada railway station is a suburban rail station in Navi Mumbai, India, serving as a key commuter hub on Mumbai’s local railway network.
  • F. None of above. chosen

Provenance (2 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_69d8dcfc3430819095ee6fc0eb4c06a5 completed April 10, 2026, 11:20 a.m.
NER Named-entity recognition batch_69e5c3d3dcec8190a468162c6a4482f6 completed April 20, 2026, 6:12 a.m.
Created at: April 10, 2026, 11:57 a.m.