A black guy in a apron grilling cornstalks.
A black guy is learning how to swim.
There is a reference to A black guy in a apron grilling cornstalks which is different for the guy learning how to swim.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & in(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_grill(e1) & n_cornstalk(x4) & (x2 = x3) & n_apron(x2) & n_guy(x1) & a_black(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(Topic(e1,x2) & Actor(e1,x1) & v_learn(e1) & n_manner(x2) & exists e2 x3.(Actor(e2,x3) & v_swim(e2)) & n_guy(x1) & a_black(s1) & Theme(s1,x1))