th or sh
sh
ch or sh
sh
ch or th
ch
th or wh
th
th or ch
ch
th or ch
ch
sh or th
sh
sh or ch
ch
sh or wh
sh
ch or wh
wh
sh or wh
wh
wh or sh
sh
ch or th
ch
th or sh?
th
th or sh
th
th or sh
th