A soldier is pointing his rifle.
A soldier is pointing his rifle and marching.
A soldier can point his rifle while standing still, while sitting, etc, not necessarily pointing and marching.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_point(e1) & n_rifle(x2) & of(x2,x1) & n_male(x1) & n_soldier(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_point(e1) & subset_of(x4,x2) & n_marching(x4) & subset_of(x3,x2) & n_rifle(x3) & of(x3,x1) & n_male(x1) & n_soldier(x1))