('CID104629150', 2),DIACETYLDEUTEROHEME
('CID104629150', 2),Diacetyldeuteroheme
('CID105491977', 1),Diacetyldeuteroheme
ldiff: defaultdict(<type 'list'>, {'CID104629150': [0, 0], 'CID105491977': [0]})
f1: [0, 0]
f2: [0]
c1: Counter({0: 2})
c2: Counter({0: 1})
The chosen was ... CID104629150