Men with hard hats lean against a building.
Men are protecting their heads from injury.
Men wear hard hats to protect their heads from injury.
exists e1 s1 x1 x2 x3.(against(e1,x3) & n_building(x3) & Actor(e1,x1) & v_lean(e1) & with(x1,x2) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_protect(e1) & from(x2,x3) & n_injury(x3) & n_head(x2) & of(x2,x1) & n_thing(x1) & n_man(x1))