Two girls are doing karate together, while others are walking in the background.
Other people walk around the two girls.
People who walk around tare in the background.
exists e1 p1 s1 s2 x1 x3.(n_background(x3) & exists e2 x2.(in(e2,x3) & Actor(e2,x2) & v_walk(e2) & -(x2 = x1) & n_person(x2)) & n_person(x1) & while(e1,p1) & a_together(s2) & Manner(e1,s2) & a_karate(s1) & Manner(e1,s1) & Actor(e1,x1) & v_do(e1) & n_girl(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_girl(x3) & card_eq_2(x3) & n_people(x2) & around(e1,x3) & Actor(e1,x1) & v_walk(e1) & -(x1 = x2) & n_people(x1))