A man without a shirt on is rock climbing.
The man without a shirt is walking into the locker room.
Rock climbing and walking are different.
exists p1 x1.(exists x4 x5.((x1 = x4) & n_climb(x4) & of(x4,x5) & n_rock(x5)) & -exists s1 x2 x3.(with(x1,x2) & Theme(s1,x3) & a_on(s1) & (x2 = x3) & n_shirt(x2)) & n_man(x1))
exists e1 x1 x2 x3.(n_room(x2) & of(x2,x3) & n_locker(x3) & n_man(x1) & into(e1,x2) & Actor(e1,x1) & v_walk(e1) & -exists x4.(with(x1,x4) & n_shirt(x4)))