a man drinking alcohol at an event
A woman drinking milk.
A man and a woman are different genders and milk and alcohol are different beverages.
exists x1 x2 x3 x4.(a_topic(x1) & at(x1,x4) & n_event(x4) & n_alcohol(x1) & of(x1,x3) & n_drinking(x3) & of(x1,x2) & n_man(x2))
exists x1 x2 x3.(a_topic(x1) & n_milk(x1) & of(x1,x3) & n_drinking(x3) & of(x1,x2) & n_woman(x2))