Dog training on the mountain
A dog is on a mountain.
Both subjects are on a or on the mountain
exists x1 x2 x3.(n_mountain(x3) & a_topic(x1) & on(x1,x3) & n_training(x1) & (x1 = x2) & ne_nam_dog(x2))
exists p1 x1.(exists x2.(on(x1,x2) & n_mountain(x2)) & n_dog(x1))