Man in white coat with glasses works in a lab.
A labworker works in the lab while wearing protective clothing.
There is no way of telling if a white coat is protective or if the glasses he is wearing are safety glasses.
exists e1 s1 x1 x2 x3 x4.(in(e1,x4) & n_lab(x4) & Actor(e1,x1) & v_work(e1) & in(x1,x2) & with(x2,x3) & n_glass(x3) & n_coat(x2) & a_white(s1) & Theme(s1,x2) & n_man(x1))
exists e2 e1 s1 x1 x2 x3.(n_lab(x2) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_wear(e2) & n_clothing(x3) & a_protective(s1) & Theme(s1,x3) & in(e1,x2) & Actor(e1,x1) & v_work(e1) & n_labworker(x1))