Two people working with something glass and electronic.
People are working with something only glass.
If they care working with something glass and electronic, they cannot be working with only glass.
exists e1 s1 s2 x1 x2 x3 x4 x5.(a_topic(x1) & with(e1,x3) & Theme(s2,x5) & a_electronic(s2) & (x3 = x5) & Theme(s1,x4) & a_glass(s1) & (x3 = x4) & n_thing(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2.(with(e1,x2) & all x3.(n_glass(x3) -> (x2 = x3)) & n_glass(x2) & Actor(e1,x1) & v_work(e1) & n_people(x1))