A boy in a red shirt is holding a phone to his ear.
A boy is on the phone
Holding a phone to his ear implies on the phone.
exists e1 s1 x1 x2 x3 x4.(to(e1,x4) & n_ear(x4) & of(x4,x1) & n_male(x1) & Theme(e1,x3) & Actor(e1,x1) & v_hold(e1) & n_phone(x3) & in(x1,x2) & n_shirt(x2) & a_red(s1) & Theme(s1,x2) & n_boy(x1))
exists p1 x1 x2.(n_phone(x2) & on(x1,x2) & n_boy(x1))