text_original: Halfway down the smoke began to overpower them, but they went on. The probability is that they were unconscious before they reached the bottom, for only a feeble signal was given, and the engineer, not understanding, did not respond.
text_transcription: HALF WAY DOWN THE SMOKE BEGAN TO OVERPOWER THEM BUT THEY WENT ON THE PROBABILITY IS THAT THEY WERE UNCONSCIOUS BEFORE THEY REACHED THE BOTTOM FOR ONLY A FEEBLE SIGNAL WAS GIVEN AND THE ENGINEER NOT UNDERSTANDING DID NOT RESPOND
phonemes: hˈæfweɪ dˌaʊn ðə smˈoʊk bɪɡˈæn tʊ ˌoʊvɚpˈaʊɚ ðˌɛm, bˌʌt ðeɪ wɛnt ˈɔn. ðə pɹˌɑːbəbˈɪlᵻɾi ɪz ðæt ðeɪ wɜːɹ ʌŋkˈɑːnʃəs bᵻfˌɔːɹ ðeɪ ɹˈiːtʃt ðə bˈɑːɾəm, fɔːɹ ˈoʊnli ɐ fˈiːbəl sˈɪɡnəl wʌz ɡˈɪvən, ænd ðɪ ˌɛndʒɪnˈɪɹ, nˌɑːt ˌʌndɚstˈændɪŋ, dɪdnˌɑːt ɹᵻspˈɑːnd.