A man stands on the beach while the tide comes in and a plane flies overhead.
A man flies a plane above the beach.
Man cannot be standing on the beach and flying a plane at the same time
exists e1 p1 x1 x2 x3.(n_tide(x3) & n_beach(x2) & exists e2 e3 s1 x4 x5.(Theme(e3,x5) & Actor(e3,x4) & v_fly(e3) & n_overhead(x5) & n_plane(x4) & a_in(s1) & Manner(e2,s1) & Actor(e2,x3) & v_come(e2)) & while(e1,p1) & on(e1,x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 x1 x2 x3.(n_beach(x3) & Theme(e1,x2) & Actor(e1,x1) & v_fly(e1) & above(x2,x3) & n_plane(x2) & n_man(x1))