premise: A snowboarder in a red jacket flies through the air, above a hill of snow, and next to a red and white sign.
hypothesis: The snowboarder is a professional.
explanation_1: Not all snowboaders are professional.
explanation_2: It is not necessary he is professional.
explanation_3: Not all snowboarders are professional snowboarders.
premise_logic: exists e3 e1 e2 s1 s2 s3 s4 s5 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(n_air(x3) & r_next(e3) & to(e3,x10) & n_sign(x10) & a_white(s5) & Theme(s5,x10) & a_red(s4) & Theme(s4,x10) & Actor(e3,x8) & v_fly(e3) & in(x8,x9) & n_jacket(x9) & a_red(s3) & Theme(s3,x9) & n_snowboarder(x8) & above(e2,x6) & of(x6,x7) & n_snow(x7) & n_hill(x6) & Actor(e2,x4) & v_fly(e2) & in(x4,x5) & n_jacket(x5) & a_red(s2) & Theme(s2,x5) & n_snowboarder(x4) & through(e1,x3) & Actor(e1,x1) & v_fly(e1) & in(x1,x2) & n_jacket(x2) & a_red(s1) & Theme(s1,x2) & n_snowboarder(x1))
hypothesis_logic: exists p1 x1.(n_snowboarder(x1) & exists x2.((x1 = x2) & n_professional(x2)))