One guy in a red beanie and green t-shirt sitting on a skateboard.
The 2 guys are skating on the sidewalk.
It's either one or two guys. If they are skating, then they can't be sitting on the skateboard.
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & on(e1,x6) & n_skateboard(x6) & Actor(e1,x5) & v_sit(e1) & (x1 = x5) & in(x1,x2) & n_t-shirt(x4) & a_green(s2) & Theme(s2,x4) & n_beanie(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_red(s1) & Theme(s1,x2) & n_guy(x1) & card_eq_1(x1))
exists e1 x1 x2.(n_sidewalk(x2) & n_guy(x1) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1) & on(e1,x2) & Actor(e1,x1) & v_skate(e1))