Two women race their bicycles on a sunny day.
The women are taking part in a triathlon.
You can not infer they are in a triathlon.
exists s1 s2 x1 x2 x3 x4.(a_topic(x1) & on(x1,x4) & n_day(x4) & a_sunny(s2) & Theme(s2,x4) & n_bicycle(x1) & a_their(s1) & Theme(s1,x1) & of(x1,x3) & n_race(x3) & of(x1,x2) & n_woman(x2) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_woman(x1) & in(e1,x3) & n_triathlon(x3) & Theme(e1,x2) & Actor(e1,x1) & v_take(e1) & n_part(x2))