o sama dong ama Mamas
o sama dong ama mamas .
o WORD_BOUNDARY s a m a WORD_BOUNDARY d o ŋ WORD_BOUNDARY a m a WORD_BOUNDARY m a m a s WORD_BOUNDARY
o WORD_BOUNDARY s a m a WORD_BOUNDARY d o n g WORD_BOUNDARY a m a WORD_BOUNDARY m a m a s WORD_BOUNDARY