Tourist are roaming around the city and some of them take a photo
The people roaming are tourists.
If the tourists are roaming then they are people that are roaming.
exists e1 e2 x1 x2 x3 x4.(n_thing(x2) & n_city(x2) & ne_nam_tourist(x1) & Theme(e2,x4) & Actor(e2,x3) & v_take(e2) & n_photo(x4) & of(x3,x2) & n_thing(x3) & around(e1,x2) & Actor(e1,x1) & v_roam(e1))
exists e1 p1 x1 x2.(n_people(x1) & exists x3.((x1 = x3) & n_tourist(x3)) & Actor(e1,x2) & v_roam(e1) & (x1 = x2))