text_original: But the com  bination failed, owing perhaps in part to the death of the Emperor Constantine V.
text_transcription: BUT THE COMBINATION FAILED OWING PERHAPS IN PART TO THE DEATH OF THE EMPEROR CONSTANTINE T
phonemes: bˌʌt ðə kˈɑːm baɪnˈeɪʃən fˈeɪld, ˈoʊɪŋ pɚhˈæps ɪn pˈɑːɹt tə ðə dˈɛθ ʌvðɪ ˈɛmpɚɹɚ kˈɑːnstɐntˌiːn vˈiː.