Complex sentence: Roberta Achtenberg (born July 20,1950) was the first openly lesbian or gay public official in the United States whose appointment to a federal position was confirmed by the United States Senate.
Split into simpler sentences: Roberta Achtenberg (born July 20,1950) is an American politician. She was the first openly lesbian or gay public official in the United States whose appointment to a federal position was confirmed by the United States Senate.