Complex sentence: In 2005, the EuroMayDay network used the slogan "Precarious of the world let's unite and strike 4 a free open radical Europe", and an estimated 200,000 partcicpants were involved in a number of cities restricted to Western Europe.
Split into simpler sentences: In 2005, the EuroMayDay network used the slogan "Precarious of the world let's unite and strike 4 a free open radical Europe". Some estimates have suggested that 200,000 partcicpants were involved in a number of cities restricted to Western Europe.