A woman in a gray jacket is walking in a town where a group of bikers has stopped.
A woman in a jacket is walking near bikers.
The second sentence uses the same information but omits some of the detail. The woman is walking near the bikers in both sentences.
exists e1 p1 s1 x1 x2 x3.(in(e1,x3) & exists e2 x4 x5.(Actor(e2,x4) & v_stop(e2) & of(x4,x5) & n_biker(x5) & n_group(x4)) & where(x3,p1) & n_town(x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_jacket(x2) & a_gray(s1) & Theme(s1,x2) & n_woman(x1))
exists e1 x1 x2 x3.(near(e1,x3) & n_biker(x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_jacket(x2) & n_woman(x1))