In the context of the input sentence, determine the relationship between 'Berkshire Hathaway' and 'conglomerate'.
Options: publisher, director/manager, industry, headquarters location

NEW YORK (Reuters) - Billionaire investing icon Warren Buffett said on Tuesday there are dozens of countries in which his sprawling Berkshire Hathaway Inc (BRKa.N) conglomerate would be interested in buying new businesses.
industry