An amputee is throwing a discus.
A man in a wheelchair is playing frisbee.
Not all amputees are a man and not all amputees are in a wheelchair and not all discuses are a frisbee.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_discus(x2) & n_amputee(x1))
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_play(e1) & n_frisbee(x3) & in(x1,x2) & n_wheelchair(x2) & n_man(x1))