premise: A group of people are posing as though flung back by the shock wave of someone punching the ground.
hypothesis: People pose.
explanation_1: If people are posing the people pose.
explanation_2: People are  posing as though flung back of a shock wave.
explanation_3: The people pose to take a picture
premise_logic: exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_ground(x8) & n_wave(x4) & of(x4,x5) & n_shock(x5) & by(e1,x4) & of(x4,x6) & Theme(e2,x8) & Actor(e2,x7) & v_punch(e2) & (x6 = x7) & n_person(x6) & a_back(s1) & Manner(e1,s1) & as(e1,x3) & r_though(x3) & n_flung(x3) & Actor(e1,x1) & v_pose(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
hypothesis_logic: exists e1 x1.(Actor(e1,x1) & v_pose(e1) & n_people(x1))