premise: A child is reaching up to the counter using a step stool.
hypothesis: The child is sitting on the floor.
explanation_1: The child cannot be simultaneously sitting on the floor and using a step stool to reach the counter.
explanation_2: The child cannot be standing on a step stool and sitting on the floor at the same time.
explanation_3: a child would either reaching to counter or  sitting on the floor
premise_logic: exists e1 e2 s1 x1 x2 x3 x4.(n_counter(x2) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_use(e2) & Time(x3,x4) & n_stool(x4) & n_step(x3) & a_up(s1) & Manner(e1,s1) & to(e1,x2) & Actor(e1,x1) & v_reach(e1) & n_child(x1))
hypothesis_logic: exists e1 x1 x2.(n_floor(x2) & n_child(x1) & on(e1,x2) & Actor(e1,x1) & v_sit(e1))