Complex sentence: Roman Catholic theology generally teaches that at the Words of Institution the bread is changed into the Body of Christ (see transubstantiation), whereas Eastern Christian theology generally views the epiclesis as the point at which the change occurs.
Split into simpler sentences: Roman Catholic theology generally teaches that at the Words of Institution the bread is changed into the Body of Christ (see transubstantiation). Whereas Eastern Christian theology generally views the epiclesis as the point at which the change occurs.