Middle-aged man with brown hair focuses on measuring substance in beaker in a lab.
A man measures.
A man focusing on measuring shows that a man measures.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6.(on(e1,e2) & in(e2,x6) & n_lab(x6) & in(e2,x5) & n_beaker(x5) & Theme(e2,x4) & Actor(e2,x3) & v_measure(e2) & n_substance(x4) & Actor(e1,x1) & v_focus(e1) & with(x1,x2) & n_hair(x2) & a_brown(s2) & Theme(s2,x2) & n_man(x1) & a_middle-aged(s1) & Theme(s1,x1))
exists x1 x2.(a_topic(x1) & n_measure(x1) & of(x1,x2) & n_man(x2))