A man drinks a purple liquid on a crowded street.
A boy sells lemonade on a street corner, but there aren't many passersby.
A man is on a crowded street while there aren't many passersby for the boy.
all s1 x1.((n_liquid(x1) & a_purple(s1) & Theme(s1,x1)) -> exists s2 x2 x3 x4.(a_topic(x2) & on(x2,x4) & n_street(x4) & a_crowded(s2) & Theme(s2,x4) & for(x2,x1) & n_drink(x2) & of(x2,x3) & n_man(x3)))
exists e1 x1 x2 x3 x4 x5.(-exists p1 x6.((x5 = x6) & n_passersby(x6) & n_quantity(x6)) & on(e1,x3) & n_corner(x3) & of(x3,x4) & n_street(x4) & Theme(e1,x2) & Actor(e1,x1) & v_sell(e1) & n_lemonade(x2) & n_boy(x1))