Some people are mingling in a room that has photographs all over the walls.
The people mingling are on a double date.
People mingling need not be a double date necessarily. They can be in any conference also.
exists e2 e1 x1 x2 x3 x4 x5.(n_wall(x5) & in(e1,x2) & r_all(e2) & over(e2,x5) & Theme(e2,x4) & Actor(e2,x3) & v_have(e2) & n_photograph(x4) & (x2 = x3) & n_room(x2) & Actor(e1,x1) & v_mingle(e1) & n_people(x1))
exists e1 p1 x1 x2.(n_people(x1) & exists s1 x3.(on(x1,x3) & n_date(x3) & a_double(s1) & Theme(s1,x3)) & Actor(e1,x2) & v_mingle(e1) & (x1 = x2))