The lady is walking to class in the snow.
There is a women running in the snow
She can't be running and walking.
exists e1 x1 x2 x3.(n_snow(x3) & n_lady(x1) & in(e1,x3) & to(e1,x2) & n_class(x2) & Actor(e1,x1) & v_walk(e1))
exists p1 x1 x4.(n_snow(x4) & exists e1 x2 x3.((x1 = x2) & in(e1,x4) & Actor(e1,x3) & v_run(e1) & (x2 = x3) & n_woman(x2)))