premise: A woman is sitting in a chair filling out some paperwork.
hypothesis: A woman runs after a duck.
explanation_1: One cannot run while sitting.
explanation_2: The woman is either running after a duck or sitting in a chair and filling out paperwork.  The woman can not run after a duck and fill paperwork out while sitting in a chair at the same time.
explanation_3: You can't be sitting and running.
premise_logic: exists e1 e2 s1 x1 x2 x3.(for(e1,e2) & a_out(s1) & Manner(e2,s1) & Theme(e2,x3) & Actor(e2,x1) & v_fill(e2) & n_paperwork(x3) & in(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1) & n_woman(x1))
hypothesis_logic: exists e1 x1 x2.(after(e1,x2) & n_duck(x2) & Actor(e1,x1) & v_run(e1) & n_woman(x1))