A snowboarder with red pants does a maneuver in the air.
A snowboarder in red pants and a black hat is performing in front of some people.
Just because a snowboarder does a maneuver in the air it does not mean they are performing.
exists e1 s1 x1 x2 x3 x4.(n_air(x4) & in(e1,x4) & Theme(e1,x3) & Actor(e1,x1) & v_do(e1) & n_maneuver(x3) & with(x1,x2) & n_pants(x2) & a_red(s1) & Theme(s1,x2) & n_snowboarder(x1))
exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(in(e1,x5) & of(x5,x6) & n_people(x6) & n_front(x5) & Actor(e1,x1) & v_perform(e1) & subset_of(x4,x1) & n_hat(x4) & a_black(s2) & Theme(s2,x4) & subset_of(x2,x1) & in(x2,x3) & n_pants(x3) & a_red(s1) & Theme(s1,x3) & n_snowboarder(x2))