Two persons repairing their bicycle.
Two people fixing a green bike.
Fixing is doesn't means repairing , bike and bicycle are different
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_repair(e1) & n_bicycle(x2) & of(x2,x1) & n_thing(x1) & n_person(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_fix(e1) & n_bike(x3) & a_green(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))