(Reuters) - Warren Buffett's Berkshire Hathaway Inc (BRKa.N) (BRKb.N) said on Friday its second-quarter profit fell 37 percent, reflecting a significant decline in investment gains and an underwriting loss from insurance operations, which include Geico.
What is the relationship between 'Berkshire Hathaway' and 'insurance' in the context of the input sentence.
Options: developer, director/manager, industry, distribution format