Given phrases that describe the relationship between two words/phrases as options, extract the word/phrase pair and the corresponding lexical relationship between them from the input text. The output format should be "relation1: word1, word2; relation2: word3, word4". Options: 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.

"Since it is taking too long for the global community to reach an legally binding agreement on the matter through the United Nations Framework Convention on Climate Change (UNFCCC); it is doubtful in carbon credits will be beneficial to Tanzania and other developing countries," he observed.

Answer: member_of: Tanzania, United Nations