People sit in green chairs at tables in the street.
People sit in chairs.
Green chairs are still chairs.
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.(in(e1,x2) & n_chair(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))