Question: Determine the topic of the question-answer pair. Question: "how are aircraft radial engines built?";  Answer: "The radial engine is a reciprocating type internal combustion engine configuration in which the cylinders point outward from a central crankshaft like the spokes of a wheel."? Topic:
Answer: Radial engine

Question: Determine the topic of the question-answer pair. Question: "when was the american labor union formed?";  Answer: "Most unions in America are aligned with one of two larger umbrella organizations: the AFL-CIO created in 1955, and the Change to Win Federation which split from the AFL-CIO in 2005."? Topic:
Answer: Labor unions in the United States

Question: Determine the topic of the question-answer pair. Question: "what is lockton affinity?";  Answer: "Lockton Affinity: Lockton Affinity, an affiliate of Lockton Companies, meets the insurance needs of affinity groups, franchises, professional organizations, and associations of all sizes."? Topic:
Answer: