What is the relationship between Goldman Sachs and Lloyd Blankfein 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.

Among leaders of the five largest U.S. banks by assets, only Goldman Sachs Group Inc. CEO Lloyd Blankfein skips the quarterly call where analysts grill executives on results and guidance.

Answer: chief_executive_officer