An Indian couple walk down a sad stretch of land.
Two people are white water rafting.
People may or may not be an Indian couple, and they can either walk or white water rafting, not both.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & down(x1,x3) & of(x3,x4) & n_land(x4) & n_stretch(x3) & a_sad(s2) & Theme(s2,x3) & n_walk(x1) & of(x1,x2) & n_couple(x2) & a_indian(s1) & Theme(s1,x1))
exists p1 x1.(exists s1 x2 x3.((x1 = x2) & n_rafting(x2) & of(x2,x3) & n_water(x3) & a_white(s1) & Theme(s1,x2)) & n_people(x1) & card_eq_2(x1))