Men dressed up for some sort of event with huge smiles on their faces.
a groomsmen party pose for a photo
Just because men are dressed up for some sort of event doesn't mean the event is a groomsmen party. Men with huge smiles on their faces may not be posing for a photo.
exists e1 s1 s2 x1 x2 x3 x4 x5.(for(e1,x2) & of(x2,x3) & on(x3,x5) & n_face(x5) & of(x5,x1) & n_thing(x1) & with(x3,x4) & n_smile(x4) & a_huge(s2) & Theme(s2,x4) & n_event(x3) & n_sort(x2) & a_up(s1) & Manner(e1,s1) & Actor(e1,x1) & v_dress(e1) & n_man(x1))
exists e1 s1 x1 x2.(for(e1,x2) & n_photo(x2) & Actor(e1,x1) & v_pose(e1) & n_party(x1) & a_groomsmen(s1) & Theme(s1,x1))