The sun is under someone's nose.
Someone does not have a nose.
The sun cannot be under someone's nose when someone's nose does not exist.
exists p1 x1.(n_sun(x1) & exists x2 x3.(under(x1,x3) & n_nose(x3) & of(x3,x2) & n_person(x2)))
exists x1.(-exists e1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_nose(x2)) & n_person(x1))