nani ga atta nani ga atta
nani ga ar
n:deic:wh ptl:case v:ir
nani ga atta nani ga atta ?
n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY
n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY n a n i WORD_BOUNDARY g a WORD_BOUNDARY a t t a WORD_BOUNDARY