Complex sentence: Iotation can result in a partial palatalization, meaning the center of the tongue is raised during and after the articulation of the consonant, or in a complete sound change to a palatal or alveolo-palatal consonant.
Split into simpler sentences: Iotation can result in a partial palatalization so the centre of the tongue is raised during and after the articulation of the consonant. There can also be a complete sound change to a palatal or alveolo-palatal consonant.