A woman walks with another person at night.
The woman is alone.
Another person is contradictory to alone.
exists e1 x1 x2 x3 x4.(n_person(x2) & at(e1,x4) & n_night(x4) & with(e1,x3) & n_person(x3) & -(x3 = x2) & Actor(e1,x1) & v_walk(e1) & n_woman(x1))
exists s1 x1.(n_woman(x1) & Theme(s1,x1) & a_alone(s1))