('CID100005414', 2),(Hydroxyethyloxy)tri(Ethyloxy)octane
('CID100005414', 2),(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE
('CID100006334', 1),(Hydroxyethyloxy)tri(Ethyloxy)octane
ldiff: defaultdict(<type 'list'>, {'CID100006334': [0], 'CID100005414': [0, 0]})
f1: [0, 0]
f2: [0]
c1: Counter({0: 2})
c2: Counter({0: 1})
The chosen was ... CID100005414