A man at a park is taking pictures.
A man is outside.
man is taking pictures is same as man is outside
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_take(e1) & n_picture(x3) & at(x1,x2) & n_park(x2) & n_man(x1))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_man(x1))