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.

AP Share on twitter Share on Google Plus by Greg Earl Former US general and Central Intelligence Agency director David Petraeus has forecast that the much vaunted Asian Century is being replaced by a renewed global alignment based around the US.

Answer: employer: David Petraeus, Central Intelligence Agency