ˈɔːl mətˈɪɹiəl pɹədˈuːst baɪ ɐ pˈʌblɪk bˈɑːdi ɪnðə jˌuːkˈeɪ mˈʌst biː pɹɪzˈuːmd təbi əfˈɪʃəl ʌnlˈɛs ɪɾ ɪz ˈʌðɚwˌaɪz mˈɑːɹkt.
All material produced by a public body in the UK must be presumed to be OFFICIAL unless it is otherwise marked.