A lady in a blue dress singing.
A man is singing.
It is either a man or woman. They are either singing or sleeping.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & n_singing(x2) & of(x2,x3) & n_dress(x3) & a_blue(s1) & Theme(s1,x2) & n_lady(x1))
exists e1 x1.(Actor(e1,x1) & v_sing(e1) & n_man(x1))