Young individuals in uniforms are gathering under the flags of several different countries.
Teenagers are gathering to smoke weed and drink in a neighbor's house.
Neighbor's house is different than the flags.
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_country(x5) & n_flag(x3) & under(e1,x3) & of(x3,x4) & -(x4 = x5) & n_country(x4) & a_several(s2) & Theme(s2,x4) & Actor(e1,x1) & v_gather(e1) & in(x1,x2) & n_uniform(x2) & n_individual(x1) & a_young(s1) & Theme(s1,x1))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_gather(e1) & exists e2 x2 x3 x4 x5 x6.(in(e2,x6) & n_house(x6) & of(x6,x5) & n_neighbor(x5) & Theme(e2,x2) & Actor(e2,x1) & v_smoke(e2) & n_drink(x4) & n_weed(x3) & subset_of(x4,x2) & subset_of(x3,x2)) & n_teenager(x1))