('CID100002788', 6),clioquinol ('CID100002788', 6),clioquinol ('CID100002788', 6),clioquinol ('CID100002788', 6),Clioquinol ('CID100002788', 6),Clioquinol [INN:BAN] ('CID100002788', 6),Clioquinol (USP/INN) ('CID100083849', 5),Clioquinol glucuronide ('CID100083849', 5),Clioquinol glucuronide ('CID100083849', 5),Clioquinol glucuronide ('CID100083849', 5),Clioquinol glucuronide ('CID100083849', 5),Clioquinol Glucuronide ldiff: defaultdict(, {'CID100002788': [0, 0, 0, 0, 10, 10], 'CID100083849': [12, 12, 12, 12, 12]}) f1: [0, 0, 0, 0, 10, 10] f2: [12, 12, 12, 12, 12] c1: Counter({0: 4, 10: 2}) c2: Counter({12: 5}) The chosen was ... CID100002788