Triple

T8658471
Position Surface form Disambiguated ID Type / Status
Subject Shahid Haghani Metro Station E205482 entity
Predicate isPartOfLineSection P57328 FINISHED
Object Tehran Metro Line 1 north–south corridor E736420 NE FINISHED

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: Tehran Metro Line 1 north–south corridor | Statement: [Shahid Haghani Metro Station, isPartOfLineSection, Tehran Metro Line 1 north–south corridor]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Tehran Metro Line 1 north–south corridor
Context triple: [Shahid Haghani Metro Station, isPartOfLineSection, Tehran Metro Line 1 north–south corridor]
  • A. Tehran Metro Line 1 chosen
    Tehran Metro Line 1 is the main north–south rapid transit line in Tehran’s metro system, running through many of the city’s central and densely populated areas.
  • B. Tehran Metro Line 2
    Tehran Metro Line 2 is a major east–west rapid transit line in Tehran’s metro system, serving numerous central and western districts and providing key transfer connections with several other lines.
  • C. Tehran Metro Line 3
    Tehran Metro Line 3 is a major north–south rapid transit line in Tehran’s metro network, serving as one of the city’s key high-capacity urban rail corridors.
  • D. Tehran Metro Line 6
    Tehran Metro Line 6 is a major north–south and east–west rapid transit line in Tehran’s urban rail network, designed to improve connectivity across central and peripheral districts of Iran’s capital.
  • E. Tehran Metro Line 5
    Tehran Metro Line 5 is a suburban commuter rail line of the Tehran Metro system that connects Tehran with the nearby city of Karaj and surrounding satellite towns.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: isPartOfLineSection
Context triple: [Shahid Haghani Metro Station, isPartOfLineSection, Tehran Metro Line 1 north–south corridor]
  • A. formsPartOfLine chosen
    Indicates that one element constitutes a segment or component belonging to a larger line.
  • B. isOnSectionOf
    Indicates that one entity is located on, or positioned along, a specific segment or subsection of another entity.
  • C. railwayLineSection
    Indicates a specific segment or portion of a railway line that connects two points along the rail network.
  • D. isJunctionOnLine
    Indicates that a particular junction lies on, or is part of, a specified line.
  • E. isLinedWith
    Indicates that one object or surface is covered, edged, or internally coated along its length or area with another material or layer.
  • F. None of above.

Provenance (4 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_69ca8350897c819086cde7596fbe5fe7 completed March 30, 2026, 2:06 p.m.
NER Named-entity recognition batch_69cc486d576081908ad28749c7971432 completed March 31, 2026, 10:19 p.m.
NED1 Entity disambiguation (via context triple) batch_69d28161b6ec8190ab91f7b00995e889 completed April 5, 2026, 3:36 p.m.
PD Predicate disambiguation batch_69cc4564e018819081036722f3e42a71 completed March 31, 2026, 10:06 p.m.
Created at: March 30, 2026, 6:30 p.m.