One tractor trying to pick up another.
A tractor is picking up another tractor.
If successful a tractor trying to pick up another tractor will become a tractor picking up another tractor
exists e1 p1 x1 x2.(a_topic(x1) & Topic(e1,p1) & Actor(e1,x2) & v_try(e1) & exists e2 s1 x3.(a_up(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x2) & v_pick(e2) & n_thing(x3)) & (x1 = x2) & n_tractor(x1) & card_eq_1(x1))
exists e1 s1 x1 x2.(a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_pick(e1) & n_tractor(x2) & -(x2 = x1) & n_tractor(x1) & n_tractor(x1))