Triple

T20660
Position Surface form Disambiguated ID Type / Status
Subject Chicago Transit Authority E409 entity
Predicate shortName P43 FINISHED
Object CTA
CTA is the primary public transportation agency serving Chicago and many of its surrounding suburbs, operating the city's buses and rapid transit "L" train system.
E1910 NE FINISHED

How this triple was built (4 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: CTA | Statement: [Chicago Transit Authority, shortName, CTA]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: CTA
Context triple: [Chicago Transit Authority, shortName, CTA]
  • A. ATE
    ATE is a U.S. National Science Foundation program that supports the education and training of technicians for advanced technology fields through partnerships between two-year colleges, industry, and other educational institutions.
  • B. TEC
    TEC is the commonly used acronym for the Episcopal Church, a mainline Anglican Christian denomination based in the United States.
  • C. Terminal 4
    Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
  • D. Cloud Gate
    Cloud Gate is a famous stainless-steel public sculpture by artist Anish Kapoor, known for its reflective, bean-like shape and prominence in Chicago’s Millennium Park.
  • E. The Protester
    The Protester is the collective title Time magazine gave in 2011 to individuals worldwide who participated in mass demonstrations and uprisings, symbolizing the power of grassroots activism in shaping global events.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
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: CTA
Triple: [Chicago Transit Authority, shortName, CTA]
Generated description
CTA is the primary public transportation agency serving Chicago and many of its surrounding suburbs, operating the city's buses and rapid transit "L" train system.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: CTA
Target entity description: CTA is the primary public transportation agency serving Chicago and many of its surrounding suburbs, operating the city's buses and rapid transit "L" train system.
  • A. ATE
    ATE is a U.S. National Science Foundation program that supports the education and training of technicians for advanced technology fields through partnerships between two-year colleges, industry, and other educational institutions.
  • B. TEC
    TEC is the commonly used acronym for the Episcopal Church, a mainline Anglican Christian denomination based in the United States.
  • C. Terminal 4
    Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
  • D. CCC
    The CCC, or Civilian Conservation Corps, was a New Deal work relief program in the United States during the 1930s and early 1940s that employed young men in conservation and public works projects such as reforestation, park development, and soil erosion control.
  • E. ETO
    ETO refers to the European Theater of Operations, the major area of military conflict in Europe during World War II involving the Allied and Axis powers.
  • F. None of above. chosen

Provenance (5 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_69a240778d288190815c0052ebbbcc91 completed Feb. 28, 2026, 1:10 a.m.
NER Named-entity recognition batch_69a24669427481908b3369f090ea8edc completed Feb. 28, 2026, 1:35 a.m.
NED1 Entity disambiguation (via context triple) batch_69a248e88e588190a704e7b83d3dc07c completed Feb. 28, 2026, 1:46 a.m.
NEDg Description generation batch_69a24c29bf64819087a7b51e8a94c278 completed Feb. 28, 2026, 2 a.m.
NED2 Entity disambiguation (via description) batch_69a24cb52c9c8190a27dcb969b989649 completed Feb. 28, 2026, 2:02 a.m.
Created at: Feb. 28, 2026, 1:14 a.m.