A man in a blue shirt gesticulates as he speaks to a uniformed official.
A person is talking to a police officer.
A police officer could be out of uniform, and a uniformed official is not necessarily a police officer.
exists e1 s1 s2 x1 x2 x3 x4.(to(e1,x4) & n_official(x4) & a_uniformed(s2) & Theme(s2,x4) & Actor(e1,x1) & v_speak(e1) & in(x1,x2) & as(x2,x1) & n_male(x1) & n_gesticulate(x2) & of(x2,x3) & n_shirt(x3) & a_blue(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2 x3.(to(e1,x2) & n_officer(x2) & of(x2,x3) & n_police(x3) & Actor(e1,x1) & v_talk(e1) & n_person(x1))