There are two people rock climbing, one is on the ground while the other climbs.
One climber watching as the other climbs.
He is  on the ground does not mean he is watching.
exists p1 x1 x6 x7.(-(x6 = x3) & n_climb(x6) & n_ground(x7) & exists p2 x2.((x1 = x2) & exists p3 x3 x4 x5.(while(p3,x6) & n_climb(x3) & n_climb(x3) & on(x3,x7) & rel(x3,x5) & n_thing(x5) & card_eq_1(x5) & of(x3,x4) & n_rock(x4)) & that(x2,p2) & n_people(x2) & card_eq_2(x2)))
exists x1 x2 x3.(-(x3 = x3) & n_climb(x3) & a_topic(x1) & as(x1,x3) & n_watching(x1) & of(x1,x2) & n_climber(x2) & card_eq_1(x1))