Amateur chef wearing a white cooking apron is about to chop a chicken with a butcher knife.
The chef is holding a knife.
Just because the chef is about to chop a chicken, it doesn't mean he is holding a knife.
exists e1 p1 s1 s2 x1 x2 x3 x4 x5.(Topic(s2,p1) & Actor(s2,x1) & a_about(s2) & exists e2 x6 x7 x8.(Theme(e2,x6) & Actor(e2,x1) & v_chop(e2) & with(x6,x7) & n_knife(x7) & of(x7,x8) & n_butcher(x8) & n_chicken(x6)) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & n_apron(x4) & of(x4,x5) & n_cooking(x5) & a_white(s1) & Theme(s1,x4) & (x1 = x3) & n_chef(x1) & (x1 = x2) & ne_nam_amateur(x2))
exists e1 x1 x2.(n_chef(x1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_knife(x2))