A man enjoys the sun in a park.
the sky is cloudy
The cannot be sun in the park if the sky is cloudy.
exists e1 x1 x2 x3.(n_sun(x2) & in(e1,x3) & n_park(x3) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_man(x1))
exists s1 x1.(n_sky(x1) & Theme(s1,x1) & a_cloudy(s1))