Scientists hard as work in a lab.
Several scientists are indoors
When you work in a lab you are most commonly indoors.
exists s1 x1 x2 x3 x4.(a_topic(x1) & as(s1,x3) & in(x3,x4) & n_lab(x4) & n_work(x3) & Theme(s1,x2) & a_hard(s1) & (x1 = x2) & n_scientist(x1))
exists p1 s1 x1.(exists x2.((x1 = x2) & n_indoor(x2)) & n_scientist(x1) & a_several(s1) & Theme(s1,x1))