What is the relationship between Somalia and United Nations 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.

A diplomatic source in Nairobi told Reuters the United Nations Monitoring Group for Somalia had also been investigating Soma, focussing on its "Capacity Building Agreement" with the oil ministry.

Answer: member_of