aa itte iru itte iru
aa itte iru itte iru .
aː WORD_BOUNDARY i t t e WORD_BOUNDARY i r ɯ WORD_BOUNDARY i t t e WORD_BOUNDARY i r ɯ WORD_BOUNDARY
a a WORD_BOUNDARY i t t e WORD_BOUNDARY i r u WORD_BOUNDARY i t t e WORD_BOUNDARY i r u WORD_BOUNDARY