('CID105288219', 2),FLUORESCEINYLTHIOUREIDO
('CID105288219', 2),FLUORESCEINYLTHIOUREIDO
('CID103037818', 1),5-Acetamido-9-(3-fluoresceinylthioureido)-3,5,9-trideoxy-2-nonulosonsonic acid
ldiff: defaultdict(<type 'list'>, {'CID105288219': [0, 0], 'CID103037818': [55]})
f1: [0, 0]
f2: [55]
c1: Counter({0: 2})
c2: Counter({55: 1})
The chosen was ... CID105288219