A person walks in the dark near streetlights.
A person walks in the dark.
The sentences are the same stating that a person walks in the dark, except the first sentence has more detail with two additional words.
exists e1 x1 x2 x3.(n_dark(x2) & in(e1,x2) & near(x2,x3) & n_streetlight(x3) & Actor(e1,x1) & v_walk(e1) & n_person(x1))
exists e1 x1 x2.(n_dark(x2) & in(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))