Many young people looking a computer items.
A classroom is inside a computer lab.
There are many places to look at computer items, not just in a classroom or computer lab.
exists e1 s1 x1 x2 x3.(n_item(x2) & of(x2,x3) & n_computer(x3) & Time(e1,x2) & Actor(e1,x1) & v_look(e1) & n_people(x1) & a_young(s1) & Theme(s1,x1) & n_quantity(x1))
exists p1 x1.(exists x2 x3.(inside(x1,x2) & n_lab(x2) & of(x2,x3) & n_computer(x3)) & n_classroom(x1))