substitution /sʌbstɪˈtuːʃn/ /ˌsʌbstɪˈtjuːʃn/
exchange /ɪksˈtʃeɪndʒ/ /ɪksˈtʃeɪndʒ/
change /tʃeɪndʒ/ /tʃeɪndʒ/
replacement /rəˈpleɪs.mənt/ /rɪˈpleɪsmənt/
