Young women and men dressed in costumes sitting and standing.
Young women and men are happily dressed in costumes.
The young men and women are wearing costumes but it isn't implied they are wearing them happily.
exists e4 e1 e3 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(Actor(e4,x6) & v_stand(e4) & in(e3,x10) & n_costume(x10) & Theme(e3,x9) & v_dress(e3) & (x6 = x9) & n_man(x8) & n_woman(x7) & subset_of(x8,x6) & subset_of(x7,x6) & a_young(s2) & Theme(s2,x6) & Actor(e2,x1) & v_sit(e2) & in(e1,x5) & n_costume(x5) & Theme(e1,x4) & v_dress(e1) & (x1 = x4) & n_man(x3) & n_woman(x2) & subset_of(x3,x1) & subset_of(x2,x1) & a_young(s1) & Theme(s1,x1))
exists e1 s1 s2 x1 x2 x3 x4.(a_happily(s2) & Manner(e1,s2) & in(e1,x4) & n_costume(x4) & Theme(e1,x1) & v_dress(e1) & n_man(x3) & n_woman(x2) & subset_of(x3,x1) & subset_of(x2,x1) & a_young(s1) & Theme(s1,x1))