A motocross biker is standing and riding his yellow and red motorcycle.
A person is riding around
Standing and riding are similar when riding around on a motocross bike.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7.(Theme(e2,x5) & Actor(e2,x3) & v_ride(e2) & n_motorcycle(x7) & a_red(s1) & Theme(s1,x7) & n_yellow(x6) & subset_of(x7,x5) & subset_of(x6,x5) & of(x5,x1) & n_male(x1) & n_biker(x3) & of(x3,x4) & n_motocross(x4) & Actor(e1,x1) & v_stand(e1) & n_biker(x1) & of(x1,x2) & n_motocross(x2))
exists e1 s1 x1.(a_around(s1) & Manner(e1,s1) & Actor(e1,x1) & v_ride(e1) & n_person(x1))