A woman wearing a scarf is talking to a man wearing glasses.
The woman does not know the man.
It cannot be inferred that the woman does not know the man wearing glasses.
exists e1 e3 e2 x1 x2 x3 x4 x5 x6.(to(e2,x4) & Theme(e3,x6) & Actor(e3,x5) & v_wear(e3) & n_glass(x6) & (x4 = x5) & n_man(x4) & Actor(e2,x1) & v_talk(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_scarf(x3) & (x1 = x2) & n_woman(x1))
exists x1 x2.(n_man(x2) & n_woman(x1) & -exists e1.(Theme(e1,x2) & Actor(e1,x1) & v_know(e1)))