Complex sentence: Stephen Lerner (born January 29,1958) is a labor and community organizer who has spent more than three decades organizing hundreds of thousands of janitors, farm workers, garment workers, and other low-wage workers into unions.
Split into simpler sentences: Stephen Lerner (born January 29,1958) is a labor and community organizer. He has organized janitors, farm workers, garment workers, and other low-wage workers into unions.