Well dressed youth laugh about something in public.
The kids are telling jokes.
There are reasons for a youth to laugh other than the fact that someone is telling jokes.
exists e1 x1 x2 x3 x4.(a_topic(x1) & about(x1,x3) & in(x3,x4) & n_public(x4) & n_thing(x3) & n_laugh(x1) & of(x1,x2) & n_youth(x2) & Theme(e1,x1) & v_dress(e1) & r_well(x1))
exists e1 x1 x2.(n_kid(x1) & Theme(e1,x2) & Actor(e1,x1) & v_tell(e1) & n_joke(x2))