Several elderly people are interacting with others.
The elderly are bitter and want nothing to do with anyone else.
If people want nothing to do with anyone, then they are not interacting.
exists e1 s1 s2 x1 x2.(with(e1,x2) & -(x2 = x1) & n_person(x1) & n_person(x2) & Actor(e1,x1) & v_interact(e1) & n_people(x1) & a_elderly(s2) & Theme(s2,x1) & a_several(s1) & Theme(s1,x1))
exists s1 x1.(n_elderly(x1) & -exists e1 p1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_want(e1) & Topic(x2,p1) & exists e2 x3.(all x4.(n_person(x4) -> (with(e2,x4) & r_else(x4))) & Theme(e2,x3) & Actor(e2,x2) & v_do(e2) & n_thing(x3)) & n_thing(x2)) & Theme(s1,x1) & a_bitter(s1))