What is the relationship between Baidu and Robin Li in the context of the input sentence. Choose an answer from: 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.

"As we continue to connect people with services and enable closed loop transactions, we are creating a transactional business model as Baidu grows and evolves in the age of mobile," chief executive Robin Li said in the earnings release.

Answer: director_/_manager