premise: The surfer crouches low and rides the wave.
hypothesis: The surfer stands tall and does a flip.
explanation_1: The surfer cannot be crouching low and standing tall simultaneously.
explanation_2: The surfer can't be crouching low and standing tall at the same time.
explanation_3: The surfer cannot be crouching low and standing tall simultaneously.
premise_logic: exists e1 e2 p1 x1 x2.(n_wave(x2) & n_surfer(x1) & Theme(e2,x2) & Actor(e2,x1) & v_ride(e2) & exists s1.(Theme(s1,x1) & a_low(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_crouch(e1))
hypothesis_logic: exists e1 e2 p1 x1 x2.(n_surfer(x1) & Theme(e2,x2) & Actor(e2,x1) & v_do(e2) & n_flip(x2) & exists s1.(Theme(s1,x1) & a_tall(s1)) & Topic(e1,p1) & Actor(e1,x1) & v_stand(e1))