CCCC#Cc1ccc2c(c1)O[C@@H](CN(C)Cc1ccc3c(c1)OCO3)[C@H](C)CN([C@@H](C)CO)S2(=O)=O
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. How many bonds in the molecule are rotatable?