A skinny white man wearing a backpack is walking across the street.
A man crosses a street.
When one crosses a street, it means he is walking across a street.
exists e1 e2 s1 s2 x1 x2 x3 x4.(n_street(x4) & across(e2,x4) & Actor(e2,x1) & v_walk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_backpack(x3) & (x1 = x2) & n_man(x1) & a_white(s2) & Theme(s2,x1) & a_skinny(s1) & Theme(s1,x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_cross(e1) & n_street(x2) & n_man(x1))