Complex sentence: William Jacobus vanden Heuvel (b.1930), a New York attorney and diplomat, has served as United States Permanent Representative to the United Nations and as Ambassador to the European office of the United Nations in Geneva.
Split into simpler sentences: William Jacobus vanden Heuvel (b.1930) is an attorney and diplomat from New York. He has served as United States Permanent Representative to the United Nations and as Ambassador to the European office of the United Nations in Geneva.