Given the input sentence, please extract the subject and object containing a certain relation in the sentence according to the following relation types, in the format of "relation1: word1, word2; relation2: word3, word4". Relations include: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Daniel Acker Share on twitter Share on Google Plus by John Kehoe Warren Buffett's biggest ever bet, a $US32.5 billion cash bid for aviation parts manufacturer Precision Castparts, demonstrates how his huge investment conglomerate Berkshire Hathaway is becoming increasingly reliant on big acquisitions to try to materially boost profits.
industry: Berkshire Hathaway, conglomerate