Translate the following inference to logic notation: There is at least one x for which x_10 is not curious or x_10 is a nurse. For all x, x_10 is curious or x_10 is a sailor. For all x, x_10 is a nurse if and only if x_10 will listen to a song. For all x, x_10 will listen to a song if and only if x_10 is a sailor. Therefore there is at least one x for which x_10 will listen to a song.
exists x: ~P(x) or Q(x). forall x: P(x) or R(x). forall x: Q(x) <-> S(x). forall x: S(x) <-> R(x). Therefore exists x: S(x).