 Complete the following phrase:  Allen could not reach a final in the first half of the season, he lost in all six semi-finals which he reached. In International Championship and Shanghai Masters Allen lost against Shaun Murphy, in English open against Mark Selby and in Champion of champions lost to Judd Trump. In the UK Championship, he suffered a whitewash from Stephen Maguire. Allens attempt to regain his Scottish open title in 2018 ended in the decider of the semi-final match against Jack Lisowski. At the 