A man and women are inside an ice cream shop.
A couple on a date in an ice cream shop.
You can not infer it is a couple.
exists p1 x1 x2 x3.(exists x4 x5 x6.(inside(x1,x4) & n_shop(x4) & of(x4,x6) & n_cream(x6) & of(x4,x5) & n_ice(x5)) & subset_of(x3,x1) & n_woman(x3) & subset_of(x2,x1) & n_man(x2))
exists x1 x2 x3 x4 x5.(a_topic(x1) & on(x1,x2) & in(x2,x3) & n_shop(x3) & of(x3,x5) & n_cream(x5) & of(x3,x4) & n_ice(x4) & n_date(x2) & n_couple(x1))