Two people are talking outside of the video game shop next door to the mobile phone store.
Two guys are hiking up a volcano to study its unique geology
People are not always guys.  Talking and hiking are different actions.  A volcano and a video game shop are different locations.
exists e1 s1 x1 x2 x3 x4 x5 x6 x7.(n_shop(x4) & of(x4,x6) & n_game(x6) & of(x4,x5) & n_video(x5) & n_store(x2) & of(x2,x3) & n_phone(x3) & a_mobile(s1) & Theme(s1,x2) & of(e1,x4) & n_next(x4) & Time(x4,x7) & n_door(x7) & r_outside(e1) & to(e1,x2) & Actor(e1,x1) & v_talk(e1) & n_people(x1) & card_eq_2(x1))
exists e1 p1 s1 s2 x1 x2 x3 x4.(Topic(e1,p1) & exists e2.(Theme(e2,x4) & Actor(e2,x1) & v_study(e2)) & n_geology(x4) & a_unique(s2) & Theme(s2,x4) & of(x4,x1) & n_thing(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_hike(e1) & n_volcano(x3) & n_guy(x2) & card_eq_2(x2) & n_guy(x1) & card_eq_2(x1))