Complex sentence: Fianna Fail, who initially refused to take their seats after being elected, entered the Dail in 1927, in part to dissassociate themselves from the killing of Kevin O'Higgins.
Split into simpler sentences: Fianna Fail, initially refused to take their seats after being elected to the Dail. However, they entered the parliament in 1927, in part to dissassociate themselves from the killing of Kevin O'Higgins.