An innertube is being worked on a bicycle by a male and female.
a guy and girl working on a bicycle to get ready for a race
a guy and girl working on a bicycle that doesn't mean they're about to get ready for a race
exists e1 x1 x2 x3 x4 x5.(Actor(e1,x3) & n_female(x5) & n_male(x4) & subset_of(x5,x3) & subset_of(x4,x3) & on(e1,x2) & n_bicycle(x2) & Theme(e1,x1) & v_work(e1) & n_innertube(x1))
exists e1 p1 s1 x1 x2 x3 x4 x5.(a_topic(s1) & Topic(e1,p1) & exists e2 p2.(exists s2 x6.(for(s2,x6) & n_race(x6) & Theme(s2,x3) & a_ready(s2)) & Topic(e2,p2) & Actor(e2,x3) & v_get(e2)) & on(e1,x5) & n_bicycle(x5) & Actor(e1,x4) & v_work(e1) & (s1 = x4) & (s1 = x3) & n_girl(x2) & n_guy(x1) & subset_of(x2,s1) & subset_of(x1,s1))