Translate the following inference to logic notation: For all x, x_9 is a poet. For all x, if x_9 makes tea, then x_9 is taking a plane. For all x, if x_9 were a poet, then x_9 is taking a plane. For all x, if x_9 reads a book, then x_9 is making tea. Therefore Sarah is taking a plane.
forall x: P(x). forall x: Q(x) -> R(x). forall x: P(x) -> R(x). forall x: S(x) -> Q(x). Therefore R(a).