A dock full of people with a vendor under a red umbrella.
A vendor at a deserted dock.
A dock cannot be both full of people and deserted.
exists s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & of(s1,x3) & with(x3,x4) & under(x4,x5) & n_umbrella(x5) & a_red(s2) & Theme(s2,x5) & n_vendor(x4) & n_people(x3) & Theme(s1,x2) & a_full(s1) & (x1 = x2) & n_dock(x1))
exists s1 x1 x2.(a_topic(x1) & at(x1,x2) & n_dock(x2) & a_deserted(s1) & Theme(s1,x2) & n_vendor(x1))