Long benchtops with microscopes have works at each station.
There are students in the lecture hall.
Benchtops with microscopes would be in a room probably for science a lecture hall would just be a place to sit and listen.
exists s1 x1 x2 x3.(all x4.(n_station(x4) -> exists e1.(Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & at(x3,x4))) & n_work(x3) & with(x1,x2) & n_microscope(x2) & n_benchtop(x1) & a_long(s1) & Theme(s1,x1))
exists p1 x1 x3 x4.(n_hall(x3) & of(x3,x4) & n_lecture(x4) & exists x2.((x1 = x2) & in(x2,x3) & n_student(x2)))