Complex sentence: Ann Rivers (born 1968) is an American politician, who has served as a Republican member of the Washington State Senate since she was appointed to represent the 18th district in 2011, upon the resignation of Joe Zarelli.
Split into simpler sentences: Ann Rivers (born 1968) is an American politician, a Republican member of the Washington State Senate. She was appointed to represent the 18th district in 2011, upon the resignation of Joe Zarelli.