('CID100000206', 4),D-Allopyranose
('CID100000206', 4),D-ALLOPYRANOSE
('CID100000206', 4),D-Allopyranose
('CID100000206', 4),D-Allopyranose
('CID100536694', 2),3,4-Dianhydro-2-O-acetyl-.beta.-d-allopyranose
('CID100536694', 2),3,4-Dianhydro-2-O-acetyl-.beta.-d-allopyranose
ldiff: defaultdict(<type 'list'>, {'CID100536694': [32, 32], 'CID100000206': [0, 0, 0, 0]})
f1: [0, 0, 0, 0]
f2: [32, 32]
c1: Counter({0: 4})
c2: Counter({32: 2})
The chosen was ... CID100000206