Two people biking beside a railroad.
Two people are biking
If people are biking beside a railroad then they are biking.
exists e1 x1 x2 x3.(a_topic(x1) & beside(e1,x3) & n_railroad(x3) & Actor(e1,x2) & v_bike(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_bike(e1) & n_people(x1) & card_eq_2(x1))