Two men ride bikes down the street on a sunny day.
Two men practice for a bike race outside.
Riding bikes does not imply that they are there to practice for a bike race.
exists e1 s1 x1 x2 x3 x4.(n_street(x3) & on(e1,x4) & n_day(x4) & a_sunny(s1) & Theme(s1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & down(x2,x3) & n_bike(x2) & n_man(x1) & card_eq_2(x1))
exists x1 x2 x3 x4 x5.(a_topic(x1) & for(x1,x3) & n_outside(x3) & of(x3,x5) & n_race(x5) & of(x3,x4) & n_bike(x4) & n_practice(x1) & of(x1,x2) & n_man(x2) & card_eq_2(x1))