Concordance in Text Processing

Dear Kilian:

Is there a way to do concordancing [extracting pre-specified number of words before and after a particular word] in KNIME Text Processing?  

I searched for the word concordance and also skimmed through the text processing forum before making this query in the forum.  My apologies if this is already addressed and in which case, kindly provide the link.

Thanks in anticipation.

SridharVenu