text_original: Some of these boats had paddle wheels extending from the sides; some were propelled by a single revolving screw at the stem, and others had two screws. Stevens experimented also with different kinds of boilers.
text_transcription: SOME OF THESE BOATS HAD PADDLE WHEELS EXTENDING FROM THE SIDES SOME WERE PROPELLED BY A SINGLE REVOLVING SCREW AT THE STERN AND OTHERS HAD TWO SCREWS STEPHEN'S EXPERIMENTED ALSO WITH DIFFERENT KINDS OF BOILERS
phonemes: sˌʌm ʌv ðiːz bˈoʊts hæd pˈædəl wˈiːlz ɛkstˈɛndɪŋ fɹʌmðə sˈaɪdz; sˌʌm wɜː pɹəpˈɛld baɪ ɐ sˈɪŋɡəl ɹᵻvˈɑːlvɪŋ skɹˈuː æt ðə stˈɛm, ænd ˈʌðɚz hæd tˈuː skɹˈuːz. stˈiːvənz ɛkspˈɛɹɪməntᵻd ˈɔːlsoʊ wɪð dˈɪfɹənt kˈaɪndz ʌv bˈɔɪlɚz.