A group of more than a dozen bike riders competes in a close race.
A group is sitting down.
The riders competes is contradictory to them sitting down.
exists e1 s1 x1 x2 x3 x4 x5 x6.(in(e1,x6) & n_race(x6) & a_close(s1) & Theme(s1,x6) & Actor(e1,x1) & v_compete(e1) & of(x1,x2) & than(x2,x3) & n_rider(x3) & of(x3,x5) & n_bike(x5) & of(x3,x4) & n_dozen(x4) & n_more(x2) & n_group(x1))
exists e1 s1 x1.(a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_group(x1))