Many runners are running on the street in a race.
The people are all riding bikes over the rough, mountain terrain.
The subjects are running on the street, not riding bikes.
exists e1 x1 x2 x3.(n_street(x2) & in(e1,x3) & n_race(x3) & on(e1,x2) & Actor(e1,x1) & v_run(e1) & n_runner(x1) & n_quantity(x1))
exists e1 s1 x1 x2 x3 x4 x5.(n_rough(x3) & n_people(x1) & a_all(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & over(x2,x3) & rel(x3,x4) & n_terrain(x4) & of(x4,x5) & n_mountain(x5) & n_bike(x2))