Their are two people one young and one older and they are skiing.
the older person is showing the younger how to ski
Just because the person is older doesn't mean he has to teach the younger person how to ski.
exists p1 x1.(exists e1 p2 x2 x3 x4 x5 x6 x7.((x1 = x7) & exists p3 x8.((x1 = x8) & n_skiing(x8)) & that(x7,p2) & n_people(x7) & card_eq_2(x7) & (x1 = x2) & Theme(e1,x4) & Pivot(e1,x3) & r_more(e1) & v_older(e1) & n_thing(x6) & card_eq_1(x6) & n_young(x5) & card_eq_1(x5) & subset_of(x6,x4) & subset_of(x5,x4) & (x2 = x3) & n_people(x2) & card_eq_2(x2)) & n_thing(x1) & n_their(x1))
exists e1 p1 s1 x1 x2.(n_younger(x2) & n_person(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1) & Theme(e1,x2) & Actor(e1,x1) & v_show(e1) & Topic(x2,p1) & exists e2.(Actor(e2,x2) & v_ski(e2)))