premise: Six workers are working on the train tracks.
hypothesis: Six workers are completing repair on a train track.
explanation_1: Just because they are working does not mean they are completing repair.
explanation_2: The workers don't have to be completing repair on the track because they can be building it.
explanation_3: There are more types of work to do on train tracks than completing repairs, so the workers may have been doing something else.
premise_logic: exists e1 x1 x2 x3.(n_track(x2) & of(x2,x3) & n_train(x3) & on(e1,x2) & Actor(e1,x1) & v_work(e1) & n_worker(x1) & card_eq_6(x1))
hypothesis_logic: exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_complete(e1) & on(x2,x3) & n_track(x3) & of(x3,x4) & n_train(x4) & n_repair(x2) & n_worker(x1) & card_eq_6(x1))