People sit in green chairs at tables in the street.
People are walking along the beach.
If people sit in the street, they cannot be walking along the beach.
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & in(e1,x4) & at(e1,x3) & n_table(x3) & in(e1,x2) & n_chair(x2) & a_green(s1) & Theme(s1,x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))
exists e1 x1 x2.(n_beach(x2) & along(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_people(x1))