Two people are demonstrating martial arts to a crowd and jumping over three youngsters who are crouched on the mat.
Two people are very athletic.
doing martial arts and jumping over children doesn't mean they are very athletic
exists e1 e3 e2 s1 x1 x2 x3 x4 x5 x6 x7.(n_mat(x7) & over(e2,x5) & on(e3,x7) & Theme(e3,x6) & v_crouch(e3) & (x5 = x6) & n_youngster(x5) & card_eq_3(x5) & Actor(e2,x4) & v_jump(e2) & n_people(x4) & card_eq_2(x4) & Theme(e1,x2) & Actor(e1,x1) & v_demonstrate(e1) & to(x2,x3) & n_crowd(x3) & n_art(x2) & a_martial(s1) & Theme(s1,x2) & n_people(x1) & card_eq_2(x1))
exists s1 x1.(r_very(s1) & Theme(s1,x1) & a_athletic(s1) & n_people(x1) & card_eq_2(x1))