Complex sentence: Her husband Bahadır İslam is a physician who volunteers in relief organizations and was on board the MV "Mavi Marmara", which was involved in the Gaza flotilla raid in 2010.
Split into simpler sentences: Her husband Bahadır İslam is a physician, who volunteers in relief organizations. He was on board the MV "Mavi Marmara", which was involved in the Gaza flotilla raid in 2010.