These girls are focused on the speaker.
The girls are listening to the radio.
Just because girls at focused on a speaker doesn't necessarily mean they are listening to a radio
exists e1 x1 x2.(n_speaker(x2) & n_girl(x1) & on(e1,x2) & Theme(e1,x1) & v_focus(e1))
exists e1 x1 x2.(n_radio(x2) & n_girl(x1) & to(e1,x2) & Actor(e1,x1) & v_listen(e1))