A cameraman recording yet another man while he makes a speech.
The presidential candidate is recorded on video while giving a speech.
Although the camera is probably filming on film, without being told where, we can't assume the man speaking is a presidential candidate.
exists p1 p2 p3 x1 x2 x3.(for(p1,x1) & exists x5.n_event(x5) & exists e1 x4.(Theme(e1,x4) & Actor(e1,x1) & v_make(e1) & n_speech(x4)) & n_male(x1) & while(p2,p3) & n_man(x1) & r_yet(x1) & of(x1,x3) & n_recording(x3) & of(x1,x2) & n_cameraman(x2))
exists e2 e1 s1 x1 x2 x3.(n_candidate(x1) & a_presidential(s1) & Theme(s1,x1) & while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_give(e2) & n_speech(x3) & on(e1,x2) & n_video(x2) & Theme(e1,x1) & v_record(e1))