A man with a long beard playing a guitar.
A man with a long red beard playing mary had a little lamb.
Not all beards are red.The fact that a man is playing a guitar doesn't imply that he is playing mary had a little lamb.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & with(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_guitar(x4) & (x2 = x3) & n_beard(x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5.(Theme(e2,x5) & Actor(e2,x1) & v_have(e2) & n_lamb(x5) & a_little(s3) & Theme(s3,x5) & with(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & n_mary(x4) & (x2 = x3) & n_beard(x2) & a_red(s2) & Theme(s2,x2) & a_long(s1) & Theme(s1,x2) & n_man(x1))