Triple

T7761038
Position Surface form Disambiguated ID Type / Status
Subject Ermelo E176019 entity
Predicate isRailwayJunctionOn P14468 FINISHED
Object Johannesburg–Durban line E218878 NE FINISHED

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: Johannesburg–Durban line | Statement: [Ermelo, isRailwayJunctionOn, Johannesburg–Durban line]

Disambiguation candidates (2 decisions)

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: Johannesburg–Durban line
Context triple: [Ermelo, isRailwayJunctionOn, Johannesburg–Durban line]
  • A. Durban–Johannesburg corridor chosen
    The Durban–Johannesburg corridor is a major South African transport and economic artery linking the coastal port city of Durban with the inland metropolis of Johannesburg.
  • B. KwaDukuza–Durban corridor
    The KwaDukuza–Durban corridor is a rapidly developing coastal economic and transport belt in KwaZulu-Natal, South Africa, linking the city of Durban with the town of KwaDukuza through urban, industrial, and residential growth.
  • C. East London line
    The East London line is a key London Overground route running through east and south London, connecting areas such as Highbury & Islington, Shoreditch, Whitechapel, and Croydon.
  • D. Livingstone–Lusaka–Kabwe–Ndola line
    The Livingstone–Lusaka–Kabwe–Ndola line is a principal north–south railway route in Zambia that links major urban and industrial centers from the southern border at Livingstone through the capital Lusaka to the Copperbelt region.
  • E. Bulawayo–Plumtree–Francistown route
    The Bulawayo–Plumtree–Francistown route is a key regional transport corridor linking southwestern Zimbabwe with northeastern Botswana, facilitating cross-border trade and travel between Bulawayo, Plumtree, and Francistown.
  • 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: isRailwayJunctionOn
Context triple: [Ermelo, isRailwayJunctionOn, Johannesburg–Durban line]
  • A. railwayJunctionFor chosen
    Indicates that a location serves as a junction point where multiple railway lines or routes connect or intersect for a given railway network or service.
  • B. isMajorRoadJunction
    Indicates that a location serves as a primary intersection where major roads or highways meet or cross.
  • C. transportationJunctionFor
    Indicates a location that serves as a connecting point where multiple transportation routes or modes meet, intersect, or transfer.
  • D. isNumberedJunctionOf
    Indicates that a junction (such as a road or rail intersection) has been assigned an official identifying number within a network.
  • E. connectsToRailStation
    Indicates that one entity has a direct link, route, or access connection to a rail station.
  • F. None of above.

Provenance (4 batches)

Stage Batch ID Job type Status
creating batch_69c69962923c8190ac74d28b4f9fe0a0 elicitation completed
NER batch_69c705257ca08190a78c592a1e616da8 ner completed
NED1 batch_69c8c7d658888190af97b83127086a2b ned_source_triple completed
PD batch_69c7016df2b08190b2330a2010691431 pd completed
Created at: March 27, 2026, 4:09 p.m.