Translate the following inference to logic notation: For all x, x_5 is sad. For all x, x_5 is not sad or x_5 is an electrician. For all x, x_5 is not an office clerk or x_5 is a scientist. For all x, x_5 is not an electrician or x_5 is curious. Therefore for all x, x_5 is a scientist or x_5 is curious.
forall x: P(x). forall x: ~P(x) or Q(x). forall x: ~R(x) or S(x). forall x: ~Q(x) or T(x). Therefore forall x: S(x) or T(x).