The process used to extract the bitumen from the sand is a hot water process originally developed by Dr. Karl Clark of the University of Alberta during the 1920s.
ðə pɹˈɑːsɛs jˈuːzd tʊ ɛkstɹˈækt ðə bɪtˈuːmɛn fɹʌmðə sˈænd ɪz ɐ hˈɑːt wˈɔːɾɚ pɹˈɑːsɛs ɚɹˈɪdʒɪnəli dɪvˈɛləpt baɪ dˈɑːktɚ. kˈɑːɹl klˈɑːɹk ʌvðə jˌuːnɪvˈɜːsᵻɾi ʌv ælbˈɜːɾə dˈʊɹɹɪŋ ðə nˈaɪntiːnhˈʌndɹɪd twˈɛnti z.