The children are wearing black tights while hopping.
The stagehands-in-training were giddy for their first day of actual work.
Children wearing tights does not indicate that they are stagehands-in-training.
exists e2 e1 s1 x1 x2.(n_child(x1) & while(e1,e2) & Actor(e2,x1) & v_hop(e2) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_tights(x2) & a_black(s1) & Theme(s1,x2))
exists s1 s2 s3 x1 x2 x3.(n_day(x2) & a_first(s2) & Theme(s2,x2) & of(x2,x1) & n_thing(x1) & n_stagehands-in-training(x1) & for(s1,x2) & of(x2,x3) & n_work(x3) & a_actual(s3) & Theme(s3,x3) & Theme(s1,x1) & a_giddy(s1))