Two people hiking on a trail outside of the city.
A man and his wife hike up a trail outside of the city.
Two people together does not mean they are man and wife.
exists e1 x1 x2 x3 x4 x5.(n_city(x5) & a_topic(x1) & on(e1,x3) & of(x4,x5) & outside(x3,x4) & n_thing(x4) & n_trail(x3) & Actor(e1,x2) & v_hike(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_city(x6) & a_up(s1) & Manner(e1,s1) & Theme(e1,x4) & Actor(e1,x1) & v_hike(e1) & of(x5,x6) & outside(x4,x5) & n_thing(x5) & n_trail(x4) & subset_of(x3,x1) & n_wife(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_man(x2))