Room of people using computers, and testing technology.
People sit in a room filled with typewriters.
The people can either be just sitting or they could be doing something.  Typewriters are not the same thing as computers.
exists e1 s1 x1 x2 x3 x4 x5 x6.(ne_nam_room(s1) & a_topic(s1) & of(s1,x1) & subset_of(x5,x1) & n_technology(x5) & of(x5,x6) & n_testing(x6) & subset_of(x2,x1) & Theme(e1,x4) & Actor(e1,x3) & v_use(e1) & n_computer(x4) & (x2 = x3) & n_people(x2))
exists e1 e2 x1 x2 x3 x4.(in(e1,x2) & with(e2,x4) & n_typewriter(x4) & Theme(e2,x3) & v_fill(e2) & (x2 = x3) & n_room(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1))