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.

"I think we have used the crisis we are experiencing, through a very disorderly and uncontrolled movement of refugees, to again achieve closer cooperation on many issues, both between the European Union and Turkey, and between Germany and Turkey," Merkel said after meeting the Turkish premier.

Answer: headquarters_location: Merkel, Germany