\v=3
\v~=\w ஆதரவற்ற|x-occurrence="1" x-occurrences="1"\w* \w விதவைகளைக்|x-occurrence="1" x-occurrences="1"\w* \w கனம்பண்ணு|x-occurrence="1" x-occurrences="1"\w*. 
\¬v