p(O)=0.5. Events A and B are conditional independent events given O and ~O respectively, that is, A and B are conditional independent events given O and A and B are also conditional independent events given ~O. We also know that p(A|O)=p(~A|~O)=0.8, p(B|O)=0.75, and p(B|~O)=0.5. Determine p(O|(A∩B)).