The indian couple mingle at the party.
A couple is  eating in Restaurant.
A couple can't be eating in a Restaurant if they are mingling at a party.
exists s1 x1 x2 x3.(n_party(x3) & n_mingle(x1) & of(x1,x2) & n_couple(x2) & a_indian(s1) & Theme(s1,x1) & a_topic(x1) & at(x1,x3))
exists e1 x1 x2.(ne_geo_restaurant(x2) & in(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_couple(x1))