cat notes.txt | sed '/^$/d' | sed 's/^>>([0-9][0-9]),/>>\1\ /g' | sed 's/^>>//g' | sort -g -t' ' -k1,1 | sed 's/^([0-9][0-9]\ )/>>\1/g'
If you have a Stroke,
a PsyD determines if you can still insert
square peg in round hole while chewing gum
and walking to coffee shop.