sleep sleep sleep sleep
sleep sleep sleep sleep
n n n n
sleep sleep sleep sleep .
s l iː p WORD_BOUNDARY s l iː p WORD_BOUNDARY s l iː p WORD_BOUNDARY s l iː p WORD_BOUNDARY
s l e e p WORD_BOUNDARY s l e e p WORD_BOUNDARY s l e e p WORD_BOUNDARY s l e e p WORD_BOUNDARY