A group of men are biking through the grass.
A group of men are indoors.
If they are biking, they have to be outdoors, not indoors.
exists e1 x1 x2 x3.(n_grass(x3) & through(e1,x3) & Actor(e1,x1) & v_bike(e1) & of(x1,x2) & n_man(x2) & n_group(x1))
exists p1 x1 x2.(exists x3.((x1 = x3) & n_indoor(x3)) & of(x1,x2) & n_man(x2) & n_group(x1))