a group of 9 bicycle riders in a group on a trail
There are 9 people riding bicycles.
A group on a trail are 9 people
exists x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & on(x2,x5) & n_trail(x5) & in(x2,x4) & n_group(x4) & n_rider(x2) & of(x2,x3) & n_bicycle(x3) & n_date(x2) & a_date_day_09(x2) & a_date_day_09(x2) & n_group(x1))
exists p1 x1 e1 x2 x3 x4.((x1 = x2) & Theme(e1,x4) & Actor(e1,x3) & v_ride(e1) & n_bicycle(x4) & (x2 = x3) & n_people(x2) & n_date(x2) & a_date_day_09(x2) & a_date_day_09(x2))