A mountain biker is jumping his bike over a rock as another cyclist stands on the trail watching.
The biker is sitting down.
The biker could be either jumping his bike or sitting down, not both at the same time.
exists e1 p1 x1 x2 x3 x4 x5 x7 x8.(n_watching(x7) & of(x7,x8) & n_trail(x8) & n_cyclist(x5) & exists e2 x6.(on(e2,x7) & Actor(e2,x6) & v_stand(e2) & n_cyclist(x6) & -(x6 = x5)) & as(e1,p1) & over(e1,x4) & n_rock(x4) & Theme(e1,x3) & Actor(e1,x1) & v_jump(e1) & n_bike(x3) & of(x3,x1) & n_male(x1) & n_biker(x1) & of(x1,x2) & n_mountain(x2))
exists e1 s1 x1.(n_biker(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1))