ba beltza ba beltz bakarra
ba beltza ba beltz bakarra .
b a WORD_BOUNDARY β e l t̪̻s̪̻ a WORD_BOUNDARY β a WORD_BOUNDARY β e l t̪̻s̪̻ WORD_BOUNDARY β a k a r a WORD_BOUNDARY
b a WORD_BOUNDARY b e l t z a WORD_BOUNDARY b a WORD_BOUNDARY b e l t z WORD_BOUNDARY b a k a r r a WORD_BOUNDARY . WORD_BOUNDARY