(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.
Utilize the input text as a context reference, choose the right relationship between 'Berkshire Hathaway' and 'insurance' from the options.
Options: developer, distribution format, director/manager, industry