text_original: He studied the archi  tecture of the old stone cell, built by kings whose very names have almost vanished from the pages of history, and was much surprised to find a wooden plank, which echoed back his tread as if it covered some subterranean vault. He also observed a huge iron ring cemented into the arched roof, from which hung a fragment of rope.
text_transcription: HE STUDIED THE ARCHITECTURE OF THE OLD STONE CELL BUILT BY KINGS WHOSE VERY NAMES HAVE ALMOST VANISHED FROM THE PAGES OF HISTORY AND WAS MUCH SURPRISED TO FIND A WOODEN PLANK WHICH ECHOED BACK HIS TREAD AS IF IT COVERED SOME SUBTERRANEAN VAULT HE ALSO OBSERVED A HUGE IRON RING CEMENTED INTO THE ARCHED ROOF FROM WHICH HUNG A FRAGMENT OF ROPE
phonemes: hiː stˈʌdid ðɪ ˌɑːɹtʃˈaɪ tˈɛktʃɚɹ ʌvðɪ ˈoʊld stˈoʊn sˈɛl, bˈɪlt baɪ kˈɪŋz hˌuːz vˈɛɹi nˈeɪmz hæv ˈɔːlmoʊst vˈænɪʃt fɹʌmðə pˈeɪdʒᵻz ʌv hˈɪstɚɹi, ænd wʌz mˈʌtʃ sɚpɹˈaɪzd tə fˈaɪnd ɐ wˈʊdən plˈæŋk, wˌɪtʃ ˈɛkoʊd bˈæk hɪz tɹˈɛd æz ɪf ɪt kˈʌvɚd sˌʌm sˌʌbtɪɹˈeɪniən vˈɔlt. hiː ˈɔːlsoʊ əbzˈɜːvd ɐ hjˈuːdʒ ˈaɪɚn ɹˈɪŋ sᵻmˈɛntᵻd ˌɪntʊ ðɪ ˈɑːɹtʃt ɹˈuːf, fɹʌm wˈɪtʃ hˈʌŋ ɐ fɹˈæɡmənt ʌv ɹˈoʊp.