Translate the following inference to logic notation: For all x, x_2 will not take a plane. There is at least one x for which x_2 will drink water. For all x, x_2 will take a plane or x_2 is a cashier. Therefore there is at least one x for which x_2 will drink water and x_2 is a cashier.
forall x: ~P(x). exists x: Q(x). forall x: P(x) or R(x). Therefore exists x: Q(x) and R(x).