Triple

T8236381
Position Surface form Disambiguated ID Type / Status
Subject Line 3 (Tehran Metro) E192417 entity
Predicate operator P179 FINISHED
Object Tehran Urban and Suburban Railways Organization E189768 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: Tehran Urban and Suburban Railways Organization | Statement: [Line 3 (Tehran Metro), operator, Tehran Urban and Suburban Railways Organization]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tehran Urban and Suburban Railways Organization
Context triple: [Line 3 (Tehran Metro), operator, Tehran Urban and Suburban Railways Organization]
  • A. Tehran Urban and Suburban Railway and Bus Company chosen
    Tehran Urban and Suburban Railway and Bus Company is the municipal public transport operator responsible for managing Tehran’s metro and bus systems, including the city’s Bus Rapid Transit network.
  • B. Islamic Republic of Iran Railways
    Islamic Republic of Iran Railways is Iran’s state-owned national railway company responsible for operating and managing the country’s rail transport network.
  • C. Tehran Bus Rapid Transit
    Tehran Bus Rapid Transit is a dedicated-lane bus network in Iran’s capital that provides high-capacity, rapid public transportation across major urban corridors.
  • D. Tehran Metro
    Tehran Metro is the rapid transit system serving Iran’s capital, providing extensive urban and suburban rail transport across the Tehran metropolitan area.
  • E. Tehran–Karaj suburban rail line
    The Tehran–Karaj suburban rail line is a key commuter railway service connecting Iran’s capital Tehran with the nearby city of Karaj, helping to handle heavy daily passenger traffic across the metropolitan corridor.
  • 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_69ca82dc8f148190a2c75a98501a7b91 completed March 30, 2026, 2:04 p.m.
NER Named-entity recognition batch_69cb782a5e18819096235679f5a644a8 completed March 31, 2026, 7:30 a.m.
NED1 Entity disambiguation (via context triple) batch_69ce4d7ff2a88190964a272647245bdc completed April 2, 2026, 11:05 a.m.
Created at: March 30, 2026, 5:47 p.m.