open close open close
open close open close !
o̞ p e̞ n WORD_BOUNDARY k l o̞ s e̞ WORD_BOUNDARY o̞ p e̞ n WORD_BOUNDARY k l o̞ s e̞ WORD_BOUNDARY
o p e n WORD_BOUNDARY c l o s e WORD_BOUNDARY o p e n WORD_BOUNDARY c l o s e WORD_BOUNDARY ! WORD_BOUNDARY