premise: People walking through dirt.
hypothesis: People are swimming.
explanation_1: People can't be swimming and walking at the same time.
explanation_2: Walking and swimming are two different physical activities.
explanation_3: You cannot be swimming and walking at the same time. Walking in dirt implies your on land, swimmingis done in water.
premise_logic: exists e1 x1 x2 x3.(a_topic(x1) & through(e1,x3) & n_dirt(x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_swim(e1) & n_people(x1))