Re$-$write the following as quantifier$-$free PL sentences, assuming a two$-$object universe of discourse $($U$.$D$.=\{$a$,$ b$\}).$ tilde$($reversed E x$)($P x middot x$)($x$)($C x superset of tilde A x$)($x$)$ A x superset of $($x$)$ B x