Complex sentence: The United Nations Conference on Trade and Development (UNCTAD) was established in 1964 as a permanent intergovernmental body, UNCTAD is the principal organ of the United Nations General Assembly dealing with trade, investment and development issues.
Split into simpler sentences: The United Nations Conference on Trade and Development (UNCTAD) was established in 1964 as a permanent intergovernmental body. It is the principal organ of the United Nations General Assembly dealing with trade, investment and development issues.