a group on bicyclists by their bikes in a parking lot
Bicyclists are preparing for a race.
People can be near bicycles for many reasons, they are not always preparing for a race.
exists x1 x2 x3 x4 x5.(a_topic(x1) & by(x1,x3) & in(x3,x4) & n_lot(x4) & of(x4,x5) & n_parking(x5) & n_bike(x3) & of(x3,x1) & n_thing(x1) & on(x1,x2) & n_bicyclist(x2) & n_group(x1))
exists e1 x1 x2.(for(e1,x2) & n_race(x2) & Actor(e1,x1) & v_prepare(e1) & n_bicyclist(x1))