e e f e e l
f e e l
n:let n:let n:let n:let
e e f e e l .
iː WORD_BOUNDARY iː WORD_BOUNDARY ɛ f WORD_BOUNDARY iː WORD_BOUNDARY iː WORD_BOUNDARY ɛ l WORD_BOUNDARY
e WORD_BOUNDARY e WORD_BOUNDARY f WORD_BOUNDARY e WORD_BOUNDARY e WORD_BOUNDARY l WORD_BOUNDARY