A man stands outside a blue building holding a white helmet.
A man with a helmet waits for a bus outside a blue building
Just because a man is standing outside does not mean he waits for a buss.
exists e1 e2 s1 s2 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_helmet(x3) & a_white(s2) & Theme(s2,x3) & outside(e1,x2) & n_building(x2) & a_blue(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))
exists e1 s1 x1 x2 x3 x4.(for(e1,x3) & outside(x3,x4) & n_building(x4) & a_blue(s1) & Theme(s1,x4) & n_bus(x3) & Actor(e1,x1) & v_wait(e1) & with(x1,x2) & n_helmet(x2) & n_man(x1))