Triple

T11550948
Position Surface form Disambiguated ID Type / Status
Subject South Bend International Airport E273887 entity
Predicate IATA code P2569 FINISHED
Object SBN
SBN is the IATA airport code for South Bend International Airport, a commercial airport serving South Bend, Indiana, and the surrounding region.
 E932701 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: SBN | Statement: [South Bend International Airport, IATA code, SBN]

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: SBN
Context triple: [South Bend International Airport, IATA code, SBN]
  • A. SNB
    SNB is the U.S. Navy’s military transport and trainer variant of the Beechcraft Model 18 aircraft.
  • B. SNB
    SNB is the abbreviation for the Schweizerische Nordwestbahn, a former Swiss railway company that operated in the northwestern region of Switzerland.
  • C. SNB
    SNB is the central bank of Switzerland responsible for the country’s monetary policy and the stability of the Swiss financial system.
  • D. SSBN
    SSBN is a naval hull classification symbol denoting nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
  • E. NSB
    NSB (Norges Statsbaner) was Norway’s former state-owned railway company responsible for most passenger train services before being reorganized and rebranded.
  • 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: SBN
Target entity description: SBN is the IATA airport code for South Bend International Airport, a commercial airport serving South Bend, Indiana, and the surrounding region.
  • A. SNB
    SNB is the U.S. Navy’s military transport and trainer variant of the Beechcraft Model 18 aircraft.
  • B. SNB
    SNB is the abbreviation for the Schweizerische Nordwestbahn, a former Swiss railway company that operated in the northwestern region of Switzerland.
  • C. SNB
    SNB is the central bank of Switzerland responsible for the country’s monetary policy and the stability of the Swiss financial system.
  • D. SSBN
    SSBN is a naval hull classification symbol denoting nuclear-powered ballistic missile submarines designed primarily for strategic nuclear deterrence.
  • E. NSB
    NSB (Norges Statsbaner) was Norway’s former state-owned railway company responsible for most passenger train services before being reorganized and rebranded.
  • 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: SBN
Triple: [South Bend International Airport, IATA code, SBN]
Generated description
SBN is the IATA airport code for South Bend International Airport, a commercial airport serving South Bend, Indiana, and the surrounding region.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69d6aae4dfa48190a3ab0b19a159a3c5 elicitation completed
NER batch_69d88a83f1e88190aabf11a4c8a6c9e5 ner completed
NED1 batch_69e6e8396ed081909bdf381db3dacd62 ned_source_triple completed
NED2 batch_69e6f9144afc819081ee7f78e32ad39a ned_description completed
NEDg batch_69e6ef8fca248190bc2fdd8457258874 nedg completed
Created at: April 8, 2026, 9:37 p.m.