Triple

T9694955
Position Surface form Disambiguated ID Type / Status
Subject United Airlines Flight 175 E234624 entity
Predicate ICAOFlightNumber P45043 FINISHED
Object UAL175
UAL175 is the ICAO flight number designating United Airlines Flight 175, the passenger flight hijacked and crashed into the South Tower of the World Trade Center during the September 11, 2001 terrorist attacks.
 E234624 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: UAL175 | Statement: [United Airlines Flight 175, ICAOFlightNumber, UAL175]

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: UAL175
Context triple: [United Airlines Flight 175, ICAOFlightNumber, UAL175]
  • A. UA175
    UA175 was the IATA flight number for United Airlines Flight 175, the passenger flight hijacked and crashed into the South Tower of the World Trade Center during the September 11, 2001 terrorist attacks.
  • B. CU17
    CU17 is the official abbreviation for the CONCACAF Under-17 Championship, a regional youth football tournament for national teams in North and Central America and the Caribbean.
  • C. U1
    U1 is a major line of the Nuremberg U-Bahn rapid transit system, connecting key districts across the Nuremberg metropolitan area.
  • D. U1
    U1 is one of Berlin’s oldest and most central U-Bahn lines, running predominantly east–west through inner-city districts and serving key cultural and nightlife areas.
  • E. UAL
    UAL is the ICAO airline designator used to identify United Airlines in aviation operations and air traffic control.
  • 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: UAL175
Target entity description: UAL175 is the ICAO flight number designating United Airlines Flight 175, the passenger flight hijacked and crashed into the South Tower of the World Trade Center during the September 11, 2001 terrorist attacks.
  • A. UA175 chosen
    UA175 was the IATA flight number for United Airlines Flight 175, the passenger flight hijacked and crashed into the South Tower of the World Trade Center during the September 11, 2001 terrorist attacks.
  • B. CU17
    CU17 is the official abbreviation for the CONCACAF Under-17 Championship, a regional youth football tournament for national teams in North and Central America and the Caribbean.
  • C. U1
    U1 is a major line of the Nuremberg U-Bahn rapid transit system, connecting key districts across the Nuremberg metropolitan area.
  • D. U1
    U1 is one of Berlin’s oldest and most central U-Bahn lines, running predominantly east–west through inner-city districts and serving key cultural and nightlife areas.
  • E. UAL
    UAL is the ICAO airline designator used to identify United Airlines in aviation operations and air traffic control.
  • F. None of above.

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: UAL175
Triple: [United Airlines Flight 175, ICAOFlightNumber, UAL175]
Generated description
UAL175 is the ICAO flight number designating United Airlines Flight 175, the passenger flight hijacked and crashed into the South Tower of the World Trade Center during the September 11, 2001 terrorist attacks.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69ca84cb580c8190a7e5f4b3bcdaf2a4 elicitation completed
NER batch_69cd9d366c488190bc153c68fef197c2 ner completed
NED1 batch_69d1912216d481909f6a0f977d570a93 ned_source_triple completed
NED2 batch_69d19611bbe08190b1893727c1fa05ce ned_description completed
NEDg batch_69d1926e9154819086be60bd6fa55453 nedg completed
Created at: March 30, 2026, 8:17 p.m.