A woman sitting in chair discusses a topic into a microphone.
The woman speaks into the microphone so the people at the back will hear
To speak into the microphone does not necessarily imply there are people in the back and that it is in order for them to hear.
exists e1 e2 x1 x2 x3 x4 x5.(into(e2,x5) & n_microphone(x5) & Theme(e2,x4) & Actor(e2,x1) & v_discuss(e2) & n_topic(x4) & in(e1,x3) & n_chair(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_woman(x1))
exists e2 e1 x1 x2 x3 x4 x5.(n_back(x4) & n_people(x3) & n_microphone(x2) & n_woman(x1) & into(e1,x2) & Theme(e2,x5) & Actor(e2,x3) & v_hear(e2) & (x2 = x5) & at(x3,x4) & r_so(x2) & Actor(e1,x1) & v_speak(e1))