A street musician playing his guitar on the street.
A musician is cooking for his family.
The musician cannot be playing his guitar on the  street and cooking for his family at once.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_play(e1) & on(x4,x2) & n_street(x2) & n_street(x2) & n_guitar(x4) & of(x4,x1) & n_male(x1) & (x1 = x3) & n_musician(x1) & of(x1,x2))
exists e1 x1 x2.(for(e1,x2) & n_family(x2) & of(x2,x1) & n_male(x1) & Actor(e1,x1) & v_cook(e1) & n_musician(x1))