Two men are kickboxing.
The men are kickboxing.
The men are kickboxing, so they must be doing just that.
exists e1 x1.(Actor(e1,x1) & v_kickbox(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1.(n_man(x1) & Actor(e1,x1) & v_kickbox(e1))