A boy in blue jumps his skateboard off some steps while his friends watch.
A boy is teaching his friend how to jump on a skateboard.
Just because his friends are watching does not mean that he is teaching them.
exists e1 p1 x1 x2 x3 x4 x5 x6.(exists e2.(Actor(e2,x6) & v_watch(e2)) & n_friend(x6) & of(x6,x1) & n_male(x1) & n_male(x1) & while(e1,p1) & rel(e1,x3) & in(x3,x4) & n_blue(x4) & Time(x4,x5) & n_jump(x5) & n_skateboard(x4) & of(x4,x1) & n_boy(x3) & off(e1,x2) & n_step(x2) & Actor(e1,x1) & v_event(e1) & n_thing(x1))
exists e1 p1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_teach(e1) & Topic(x2,p1) & exists e2 x3.(on(e2,x3) & n_skateboard(x3) & Actor(e2,x2) & v_jump(e2)) & n_friend(x2) & of(x2,x1) & n_male(x1) & n_boy(x1))