The dressed up young people are sitting in chairs while they wait.
Impatient people are waiting for something.
The dressed up young people are sitting in chairs while they wait does not indicate that impatient people are waiting for something.
exists e1 e2 p1 s1 x1 x2.(n_thing(x1) & n_people(x1) & a_young(s1) & Theme(s1,x1) & r_up(x1) & Theme(e1,x1) & v_dress(e1) & exists e3.(Actor(e3,x1) & v_wait(e3)) & while(e2,p1) & in(e2,x2) & n_chair(x2) & Actor(e2,x1) & v_sit(e2))
exists e1 s1 x1 x2.(for(e1,x2) & n_thing(x2) & Actor(e1,x1) & v_wait(e1) & n_people(x1) & a_impatient(s1) & Theme(s1,x1))