Complex sentence: Scooby and Shaggy see Mayor Corey talking to and giving things to many of the townspeople, then run into the witch again, who chases them towards Mayor Corey and into Velma and Ben.
Split into simpler sentences: Scooby and Shaggy see Mayor Corey talking to and giving things to many of the townspeople. They then run into the witch again, who chases them towards Mayor Corey and into Velma and Ben.