A martial arts class during which one student is holding a board broken by another student while others watch.
The student broke the board with a punch.
A board broken by another student doesn't imply the board broke with a punch.
exists e1 e2 p1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x5) & during(e2,x5) & n_class(x5) & of(x5,x6) & n_art(x6) & a_martial(s1) & Theme(s1,x5) & Theme(e2,x2) & Actor(e2,x1) & v_hold(e2) & exists e3 x7.(Actor(e3,x7) & v_watch(e3) & -(x7 = x1) & n_person(x7)) & n_person(x1) & while(e1,p1) & Actor(e1,x4) & n_student(x4) & -(x4 = x1) & n_student(x1) & n_student(x1) & Theme(e1,x3) & v_break(e1) & (x2 = x3) & n_board(x2) & card_eq_1(x1))
exists e1 x1 x2 x3.(n_board(x2) & n_student(x1) & with(e1,x3) & n_punch(x3) & Theme(e1,x2) & Actor(e1,x1) & v_break(e1))