tsk tsk tsk tsk tsk
tsk tsk tsk tsk tsk .
t̪ʰ s kʰ WORD_BOUNDARY t̪ʰ s kʰ WORD_BOUNDARY t̪ʰ s kʰ WORD_BOUNDARY t̪ʰ s kʰ WORD_BOUNDARY t̪ʰ s kʰ WORD_BOUNDARY
t s k WORD_BOUNDARY t s k WORD_BOUNDARY t s k WORD_BOUNDARY t s k WORD_BOUNDARY t s k WORD_BOUNDARY . WORD_BOUNDARY