Two people are demonstrating martial arts to a crowd and jumping over three youngsters who are crouched on the mat.
Two brothers demonstrate martial arts
The people are not necessarily brothers
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 e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_demonstrate(e1) & n_art(x2) & a_martial(s1) & Theme(s1,x2) & n_brother(x1) & card_eq_2(x1))