text_original: The proof had been obtained that there were animal forms to which oxygen was fatal.
text_transcription: THE PROOF HAD BEEN OBTAINED THAT THERE WERE ANIMAL FORMS TO WHICH OXYGEN WAS FATAL
phonemes: ðə pɹˈuːf hɐdbɪn əbtˈeɪnd ðæt ðɛɹwˌɜːɹ ˈænɪməl fˈɔːɹmz tʊ wˌɪtʃ ˈɑːksɪdʒən wʌz fˈeɪɾəl.