Two people taking pictures and looking at a beautiful scene by the water.
The couple is on vacation.
Just because two people are there doesn't mean they are a couple.  You don't have to be on vacation to see a beautiful scene.
exists e1 e2 s1 x1 x2 x3 x4 x5.(n_water(x5) & at(e2,x4) & by(x4,x5) & n_scene(x4) & a_beautiful(s1) & Theme(s1,x4) & Actor(e2,x3) & v_look(e2) & n_people(x3) & card_eq_2(x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_picture(x2) & n_people(x1) & card_eq_2(x1))
exists p1 x1.(n_couple(x1) & exists x2.(on(x1,x2) & n_vacation(x2)))