2 boys in the foreground in a karate competition and coaches in background looking on with another coach sitting at table.
Two people watch a martial arts match.
Coaches watch a match, they don't perform in a match, so the coaches in the first sentence are watching and in the second sentence, the fact that they are at a martial arts match is confirmed.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(n_foreground(x3) & with(e1,x9) & n_coach(x9) & -(x9 = x5) & n_coach(x5) & n_coach(x5) & on(e1,e2) & at(e2,x8) & n_table(x8) & Actor(e2,x7) & v_sit(e2) & n_thing(x7) & Actor(e1,x1) & v_look(e1) & in(x1,x2) & subset_of(x5,x2) & in(x5,x6) & n_background(x6) & subset_of(x3,x2) & in(x3,x4) & n_competition(x4) & a_karate(s1) & Theme(s1,x4) & n_boy(x1) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1))
exists e1 s1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_match(x2) & of(x2,x3) & n_art(x3) & a_martial(s1) & Theme(s1,x2) & n_people(x1) & card_eq_2(x1))