A man in a coat talking on his phone on the street.
The man talking on the phone is calling a taxi.
The man is talking on his phone on the street but that does not necessarily mean he is calling a taxi.
exists e1 x1 x2 x3 x4 x5.(n_street(x5) & a_topic(x1) & in(x1,x2) & on(e1,x4) & on(x4,x5) & n_phone(x4) & of(x4,x1) & n_male(x1) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_coat(x2) & n_man(x1))
exists e2 e1 x1 x2 x3 x4.(n_phone(x3) & n_man(x1) & Theme(e2,x4) & Actor(e2,x1) & v_call(e2) & n_taxi(x4) & on(e1,x3) & Actor(e1,x2) & v_talk(e1) & (x1 = x2))