2 rodeo riders on horses chasing a bull
The rodeo riders are wearing large hats.
The Rodeo Riders were most likely performers. Using Inference I came to that conclusion because large hats are Usually Worn During  a Spectacle or performance.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x3) & Theme(e1,x5) & Actor(e1,x4) & v_chase(e1) & n_bull(x5) & (x3 = x4) & n_horse(x3) & n_rider(x1) & of(x1,x2) & n_rodeo(x2) & n_date(x1) & a_date_day_02(x1) & a_date_day_02(x1))
exists e1 s1 x1 x2 x3.(n_rider(x1) & of(x1,x2) & n_rodeo(x2) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_hat(x3) & a_large(s1) & Theme(s1,x3))