A man is standing at a desk about to speak.
A person is standing.
a man can be written as a person.
exists e1 p1 s1 x1 x2 x3.(Topic(e1,p1) & a_about(s1) & Manner(p1,s1) & exists e2.(Actor(e2,x1) & v_speak(e2)) & at(e1,x3) & n_desk(x3) & Actor(e1,x2) & v_stand(e1) & n_man(x2) & n_man(x1))
exists e1 x1.(Actor(e1,x1) & v_stand(e1) & n_person(x1))