premise: Tractor doing construction work.
hypothesis: A tractor is parked doing nothing.
explanation_1: A tractor cannot be doing nothing and construction work.
explanation_2: A tractor that is parked doing nothing cannot be doing construction work at the same time.
explanation_3: A tractor cannot be doing construction work if it is parked doing nothing.
premise_logic: exists e1 x1 x2 x3.(ne_nam_tractor(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_work(x2) & of(x2,x3) & n_construction(x3))
hypothesis_logic: exists e1 p1 x1.(-exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_do(e2) & n_thing(x2)) & Recipient(e1,p1) & Topic(e1,x1) & v_park(e1) & n_tractor(x1))