A man jumps toward a floating device in a lake as another man watches.
There is no water around.
If there is no water, a device cannot be floating in a lake.
exists e1 p1 s1 x1 x2 x3.(exists e2 x4.(Actor(e2,x4) & v_watch(e2) & n_man(x4) & -(x4 = x1)) & n_man(x1) & n_man(x1) & as(e1,p1) & toward(e1,x2) & in(x2,x3) & n_lake(x3) & n_device(x2) & a_floating(s1) & Theme(s1,x2) & Actor(e1,x1) & v_jump(e1))
exists p1 x1.-exists s1 x2.((x1 = x2) & n_water(x2) & a_around(s1) & Theme(s1,x2))