Cc1c(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)c(CO)c(O[C@@H]2O[C@H](CO)[C@@H](O)[C@H](O)[C@H]2O)c2c1O[C@@H](c1ccccc1)C[C@@H]2O
The electronegative atoms usually involved in hydrogen bonding are oxygen, nitrogen and fluorine. How many hydrogen bond acceptors does the molecule contain?