Busy marketplace in an Arabian country.
Empty marketplace in America.
Empty and busy are different.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_country(x3) & a_arabian(s1) & Theme(s1,x3) & n_marketplace(x1) & (x1 = x2) & ne_nam_busy(x2))
exists s1 x1 x2.(ne_geo_america(x2) & a_topic(x1) & in(x1,x2) & n_marketplace(x1) & a_empty(s1) & Theme(s1,x1))