A young boy operates the barbecue.
A young boy operates the toy barbecue.
Operating a barbecue does not imply it is a toy barbecue.
exists e1 s1 x1 x2.(n_barbecue(x2) & Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(n_barbecue(x2) & of(x2,x3) & n_toy(x3) & Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1))