fɔːɹ sˌɜːɾɪfɪkˈeɪʃən, ɐ skˈiː ɪnstɹˈʌktɚ hædtə pɚfˈɔːɹm wˈɛl ɪnˈʌf ɪnðɪ ɪkˈoʊlz ˈænjuːəl tʃˈælɪndʒ tʊ ˈɜːn ɐ sˈɪlvɚ mˈɛdəl.. .
For certification, a ski instructor had to perform well enough in the Ecole's annual Challenge to earn a silver medal.. .