premise: A hot-air balloon getting filled.
hypothesis: A hot-air balloon is being operated on.
explanation_1: Getting filled is another way to say operated on.
explanation_2: A balloon getting filled with air is being operated on.
explanation_3: Balloon getting filled implies balloon is being operated on.
premise_logic: exists e1 p1 s1 x1 x2.(a_topic(x1) & exists e2.(Theme(e2,x2) & v_fill(e2)) & Topic(e1,p1) & Actor(e1,x2) & v_get(e1) & (x1 = x2) & n_balloon(x1) & a_hot-air(s1) & Theme(s1,x1))
hypothesis_logic: exists e1 s1 s2 x1.(a_on(s2) & Manner(e1,s2) & Theme(e1,x1) & v_operate(e1) & n_balloon(x1) & a_hot-air(s1) & Theme(s1,x1))