('CID106398469', 2),Phosphorylisopropane
('CID106398469', 2),PHOSPHORYLISOPROPANE
('CID100000180', 1),Phosphorylisopropane
ldiff: defaultdict(<type 'list'>, {'CID106398469': [0, 0], 'CID100000180': [0]})
f1: [0, 0]
f2: [0]
c1: Counter({0: 2})
c2: Counter({0: 1})
The chosen was ... CID106398469