('CID100005514', 3),2,3:4,5-Bis-O-(1-methylethylidene)-beta-D-fructopyranose sulfamate
('CID100005514', 3),beta-D-Fructopyranose, 2,3:4,5-bis-O-(1-methylethylidene)-, sulfamate
('CID100005514', 3),2,3-4,5-bis-O-(1-methylethylidene)-beta-D-fructopyranose sulfamate
('CID100003426', 2),beta-D-Fructopyranose
('CID100003426', 2),BETA-D-FRUCTOPYRANOSE
ldiff: defaultdict(<type 'list'>, {'CID100005514': [45, 48, 45], 'CID100003426': [0, 0]})
f1: [45, 48, 45]
f2: [0, 0]
c1: Counter({45: 2, 48: 1})
c2: Counter({0: 2})
The chosen was  ... CID100003426