Two boys with unicycles stand outside of a street shop.
Two boys ride regular bicycles during a race.
The two boys either ride a regular bicycles or a unicycles.
exists e1 x1 x2 x3 x4.(of(e1,x3) & n_shop(x3) & of(x3,x4) & n_street(x4) & r_outside(e1) & Actor(e1,x1) & v_stand(e1) & with(x1,x2) & n_unicycle(x2) & n_boy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(during(e1,x3) & n_race(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_bicycle(x2) & a_regular(s1) & Theme(s1,x2) & n_boy(x1) & card_eq_2(x1))