This gentleman is talking on the phone.
watched by a group
One person talking on a phone is not likely to be watched by a group.
exists e1 x1 x2.(n_phone(x2) & n_gentleman(x1) & on(e1,x2) & Actor(e1,x1) & v_talk(e1))
exists e1 x1 x2.(Actor(e1,x2) & n_group(x2) & Theme(e1,x1) & v_watch(e1) & n_thing(x1))