Which preposition to use with fragmentary

as Occurrences 1%

"The thing is beyond further discussion; for it is futile to attempt to discuss a thing, to any purpose, of which one has a knowledge so fragmentary as this.

in Occurrences 1%

Miss Goldthwaite was singularly discursive and fragmentary in her conversation this morning, somehow.

than Occurrences 1%

While I have delayed, my memory has not improved, and my recollections of the past are more hazy and fragmentary than when it first occurred to me that one day I might write them down.

Which preposition to use with  fragmentary