People are exploring a city with their maps and cameras out.
Tourists travel in a city while taking pictures.
If people are exploring a city with maps, they are tourists.
exists e1 s1 x1 x2 x3 x4 x5.(a_out(s1) & Manner(e1,s1) & with(e1,x3) & n_camera(x5) & n_map(x4) & subset_of(x5,x3) & subset_of(x4,x3) & of(x3,x1) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_explore(e1) & n_city(x2) & n_people(x1))
exists e1 e2 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_take(e2) & n_picture(x3) & in(e1,x2) & n_city(x2) & Actor(e1,x1) & v_travel(e1) & n_tourist(x1))