('CID100440102', 6),beta-L-arabinose 1-P
('CID100440102', 6),beta-L-Arabinose 1-phosphate
('CID100440102', 6),beta-L-arabinose 1-phosphate dianion
('CID100440102', 6),beta-L-arabinose 1-P
('CID100440102', 6),beta-L-Arabinose 1-phosphate
('CID100440102', 6),beta-L-arabinose 1-phosphate dianion
('CID100000229', 3),beta-L-Arabinose
('CID100000229', 3),beta-L-Arabinose
('CID100000229', 3),BETA-L-ARABINOSE
ldiff: defaultdict(<type 'list'>, {'CID100000229': [0, 0, 0], 'CID100440102': [4, 12, 20, 4, 12, 20]})
f1: [4, 12, 20, 4, 12, 20]
f2: [0, 0, 0]
c1: Counter({12: 2, 4: 2, 20: 2})
c2: Counter({0: 3})
The chosen was  ... CID100000229