A man and woman smile after being wed.
a couple smiles at their wedding on Easter
Having a wedding doesn't imply it was on Easter.
exists e1 e2 x1 x2 x3.(after(e1,e2) & Theme(e2,x1) & v_wed(e2) & Actor(e1,x1) & v_smile(e1) & n_woman(x3) & n_man(x2) & subset_of(x3,x1) & subset_of(x2,x1))
exists e1 x1 x2 x3.(ne_nam_easter(x3) & at(e1,x2) & on(x2,x3) & n_wedding(x2) & of(x2,x1) & n_thing(x1) & Actor(e1,x1) & v_smile(e1) & n_couple(x1))