('CID100114880', 2),DODECYL-ALPHA-D-MALTOSIDE
('CID100114880', 2),DODECYL-ALPHA-D-MALTOSIDE
('CID109893086', 1),DODECYL-ALPHA-D-MALTOSIDE
ldiff: defaultdict(<type 'list'>, {'CID100114880': [0, 0], 'CID109893086': [0]})
f1: [0, 0]
f2: [0]
c1: Counter({0: 2})
c2: Counter({0: 1})
The chosen was ... CID100114880