Complex sentence: During the "" storyline, Mac Gargan is seen at the Raft superprison, having been separated from the Venom symbiote: the symbiote's removal was causing medical problems due to the side effects from his original genetic mutation.
Split into simpler sentences: During the "" storyline, Mac Gargan is seen at the Raft superprison, having been separated from the Venom symbiote. As for Gargan, the symbiote's removal was causing medical problems due to the side effects from his original genetic mutation.