A man with glasses dressed in a white coat in front of chemicals.
A man is near chemicals.
A man in front of chemicals means he is near chemicals.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & with(x1,x2) & in(e1,x5) & of(x5,x6) & n_chemical(x6) & n_front(x5) & in(e1,x4) & n_coat(x4) & a_white(s1) & Theme(s1,x4) & Theme(e1,x3) & v_dress(e1) & (x2 = x3) & n_glass(x2) & n_man(x1))
exists p1 x1.(exists s1 x2.((x1 = x2) & n_chemical(x2) & a_near(s1) & Theme(s1,x2)) & n_man(x1))