The bike rider runs with his red bike while another gains on him, both wearing green outfits and black helmets.
The chasing team member is red with effort.
A biker runs while another gains on him does not imply one is chasing or is red with effort.
exists e2 e1 s1 s2 s3 x1 x2 x3 x4 x5 x6 x7 x8.(n_helmet(x8) & a_black(s3) & Theme(s3,x8) & n_outfit(x7) & subset_of(x8,x6) & subset_of(x7,x6) & a_green(s2) & Theme(s2,x6) & Actor(e2,x6) & v_wear(e2) & n_male(x1) & n_male(x1) & n_gain(x3) & n_bike(x2) & n_bike(x2) & a_red(s1) & Theme(s1,x2) & of(x2,x1) & n_rider(x1) & of(x1,x2) & while(e1,x4) & on(x4,x5) & subset_of(x6,x5) & subset_of(x1,x5) & n_gain(x4) & -(x4 = x3) & with(e1,x2) & Actor(e1,x1) & v_run(e1))
exists s1 x1 x2 x3 x4.(n_member(x1) & of(x1,x3) & n_team(x3) & of(x1,x2) & n_chasing(x2) & with(s1,x4) & n_effort(x4) & Theme(s1,x1) & a_red(s1))