('CID103050357', 3),1-thiocoumarin, 3-amino-4-(methylamino)-
('CID103050357', 3),1-Thiocoumarin, 3-amino-4-(methylamino)-
('CID103050357', 3),3-Amino-4-(methylamino)-1-thiocoumarin
('CID103042375', 3),1-Thiocoumarin, 3-amino-4-anilino-
('CID103042375', 3),3-amino-4-anilino-1-thiocoumarin
('CID103042375', 3),3-Amino-4-anilino-1-thiocoumarin
ldiff: defaultdict(<type 'list'>, {'CID103050357': [28, 28, 26], 'CID103042375': [22, 20, 20]})
f1: [28, 28, 26]
f2: [22, 20, 20]
c1: Counter({28: 2, 26: 1})
c2: Counter({20: 2, 22: 1})
The chosen was  ... CID103042375