Triple

T11170661
Position Surface form Disambiguated ID Type / Status
Subject PostBus services E264264 entity
Predicate operator P179 FINISHED
Object PostBus Ltd
PostBus Ltd is a public transport company best known for operating regional and intercity bus services, often under the PostBus brand.
 E908871 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: PostBus Ltd | Statement: [PostBus services, operator, PostBus Ltd]

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: PostBus Ltd
Context triple: [PostBus services, operator, PostBus Ltd]
  • A. National Bus Company
    The National Bus Company was a large state-owned operator that oversaw most local and regional bus services in England and Wales from the late 1960s until its privatization in the 1980s.
  • B. İETT buses
    İETT buses are Istanbul’s municipal public buses, operating an extensive network of urban and inter-district routes across the city.
  • C. Badger Bus
    Badger Bus is a regional intercity bus company in Wisconsin that provides scheduled passenger service between major cities such as Milwaukee and Madison.
  • D. First Bus
    First Bus is a major UK bus operator providing local and regional public transport services in numerous towns and cities.
  • E. Autobuses del Norte
    Autobuses del Norte is a Mexico City Metro station that serves the nearby northern intercity bus terminal, connecting metro passengers with regional and long-distance bus services.
  • 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: PostBus Ltd
Target entity description: PostBus Ltd is a public transport company best known for operating regional and intercity bus services, often under the PostBus brand.
  • A. National Bus Company
    The National Bus Company was a large state-owned operator that oversaw most local and regional bus services in England and Wales from the late 1960s until its privatization in the 1980s.
  • B. İETT buses
    İETT buses are Istanbul’s municipal public buses, operating an extensive network of urban and inter-district routes across the city.
  • C. Badger Bus
    Badger Bus is a regional intercity bus company in Wisconsin that provides scheduled passenger service between major cities such as Milwaukee and Madison.
  • D. First Bus
    First Bus is a major UK bus operator providing local and regional public transport services in numerous towns and cities.
  • E. Autobuses del Norte
    Autobuses del Norte is a Mexico City Metro station that serves the nearby northern intercity bus terminal, connecting metro passengers with regional and long-distance bus services.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: PostBus Ltd
Triple: [PostBus services, operator, PostBus Ltd]
Generated description
PostBus Ltd is a public transport company best known for operating regional and intercity bus services, often under the PostBus brand.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d6aa9dafac8190bd90d2c74f661aa7 elicitation completed
NER batch_69d7e8952e248190b0751669e8c960b7 ner completed
NED1 batch_69e463b155a08190b361b38a39d25b1f ned_source_triple completed
NED2 batch_69e47292cdd08190b05c4c8b09f4f918 ned_description completed
NEDg batch_69e46c37efec81908aa709587c37569d nedg completed
Created at: April 8, 2026, 9:29 p.m.