Complex sentence: Joan Ryan served as a local Labour Councillor for eight years she was Chair of Policy and Finance and deputy leader of Barnet Council before being elected as Member of Parliament for Enfield North in the 1997 general election.
Split into simpler sentences: Joan Ryan served as a local Labour Councillor for eight years. She was Chair of Policy and Finance and deputy leader of Barnet Council before being elected as Member of Parliament for Enfield North in the 1997 general election.