Translate the following inference to logic notation: For all x, if x_9 drinks water, then x_9 is a poet. There is at least one x for which x_9 is curious or x_9 will drink water. For all x, if x_9 were curious, then x_9 is a poet. For all x, if x_9 were a poet, then x_9 is a musician. Therefore there is at least one x for which x_9 is a musician.
forall x: P(x) -> Q(x). exists x: R(x) or P(x). forall x: R(x) -> Q(x). forall x: Q(x) -> S(x). Therefore exists x: S(x).