two snowboarders throw up their hands.
two snowboarders just finished snowboarding
Snowboarders could throw their hands up for reasons other than that they just finished snowboarding.
exists e1 s1 x1 x2.(a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_throw(e1) & n_hand(x2) & of(x2,x1) & n_thing(x1) & n_snowboarder(x1) & card_eq_2(x1))
exists e1 p1 s1 x1.(a_just(s1) & Manner(e1,s1) & exists s2.(Theme(s2,x1) & a_snowboard(s2)) & Topic(e1,p1) & Actor(e1,x1) & v_finish(e1) & n_snowboarder(x1) & card_eq_2(x1))