Several people standing in a grassy yard.
The people are standing on the front lawn discussing lawn care.
Just because the people are standing in a grassy yard does not necessarily mean they are on the front lawn.
exists e1 s1 s2 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_yard(x3) & a_grassy(s2) & Theme(s2,x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_people(x1) & a_several(s1) & Theme(s1,x1))
exists e2 e1 s1 x1 x2 x3.(n_people(x1) & for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_discuss(e2) & n_care(x3) & of(x3,x2) & n_lawn(x2) & n_lawn(x2) & on(e1,x2) & a_front(s1) & Theme(s1,x2) & Actor(e1,x1) & v_stand(e1))