 Complete the following phrase:  Williams first ranking event of the 201213 season was the Wuxi Classic, where he beat Tom Ford and Mark Allen, before losing 35 to Marcus Campbell in the quarter-finals.ref name201213ref He went one better at the Shanghai Masters by seeing off Mark Davis, Ricky Walden and Joe Perry to face Judd Trump in the semi-finals. Trump was 51 up and on a break of 53 for the match, but Williams came back to trail 45 before losing the next frame to come up short of completing a comeback, and Trump beat Williams 64. Williams then suffered a huge dip in form as he lost in the first round of six successive ranking events; after his defeat to Mark King in the 