CC(C)=CCc1c(O)c(CC=C(C)C)c2oc3c(c(=O)c2c1O)C(C=C(C)C)Oc1cc(O)ccc1-3
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?