The hikers standing in front of a map billboard in a snowy area.
The hikers are smiling in front of the billboard.
You can not infer they are smiling.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_hiker(x1) & a_topic(x1) & in(e1,x3) & of(x3,x4) & in(x4,x6) & n_area(x6) & a_snowy(s1) & Theme(s1,x6) & n_billboard(x4) & of(x4,x5) & n_map(x5) & n_front(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2))
exists e1 x1 x2 x3.(n_billboard(x3) & n_hiker(x1) & in(e1,x2) & of(x2,x3) & n_front(x2) & Actor(e1,x1) & v_smile(e1))