A man is gesturing over some sort of platform.
a man is near a platform
Gesturing over a platform does imply being near a platform.
exists e1 x1 x2 x3.(over(e1,x2) & of(x2,x3) & n_platform(x3) & n_sort(x2) & Actor(e1,x1) & v_gesture(e1) & n_man(x1))
exists p1 x1.(exists x2.(near(x1,x2) & n_platform(x2)) & n_man(x1))