A young man is talking on a phone while riding a horse.
The man is speaking with his mother.
A man is talking over phone with his mother
exists e2 e1 s1 x1 x2 x3.(while(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_ride(e2) & n_horse(x3) & on(e1,x2) & n_phone(x2) & Actor(e1,x1) & v_talk(e1) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_mother(x2) & of(x2,x1) & n_male(x1) & n_man(x1) & with(e1,x2) & Actor(e1,x1) & v_speak(e1))