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pro:int v pro:per v
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v a s WORD_BOUNDARY h a s t WORD_BOUNDARY d uː WORD_BOUNDARY f ɛ ɐ ɡ ɛ s ə n WORD_BOUNDARY
w a s WORD_BOUNDARY h a s t WORD_BOUNDARY d u WORD_BOUNDARY v e r g e s s e n WORD_BOUNDARY