A group of kids, sitting on the floor, in an art museum listening to an older lady.
There are no kids.
A group of kids is not no kids.
exists e1 e2 s1 x1 x2 x3 x4 x5 x6 x7 x8.(n_floor(x4) & a_topic(x1) & in(e1,x5) & to(e2,x8) & n_lady(x8) & r_more(s1) & a_older(s1) & Theme(s1,x8) & Actor(e2,x7) & v_listen(e2) & (x5 = x7) & n_museum(x5) & of(x5,x6) & n_art(x6) & on(e1,x4) & Actor(e1,x3) & v_sit(e1) & (x1 = x3) & of(x1,x2) & n_kid(x2) & n_group(x1))
exists p1 x1.-exists x2.((x1 = x2) & n_kid(x2))