A group of travelers browse and enjoy a local market.
Some tourists are looking at souvenirs.
we know they are some sort of travelers but don't know anything about Tourists or souvenirs until the second sentence
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x4) & Theme(e1,x6) & Actor(e1,x5) & v_enjoy(e1) & n_market(x6) & a_local(s1) & Theme(s1,x6) & (x4 = x5) & n_group(x4) & a_topic(x1) & of(x1,x2) & n_browse(x2) & of(x2,x3) & n_traveler(x3) & n_group(x1))
exists e1 x1 x2.(at(e1,x2) & n_souvenir(x2) & Actor(e1,x1) & v_look(e1) & n_tourist(x1))