A few further thoughts on assignment 2. 

Your first priority should to address the cases where each regex 
corresponds to a word in our "traditional" sense. 

/ Robin / /Crusoe /
/ interest(s|ed) / /in(to)? /

Your program should handle such cases in a relatively intuitive way. 

For cases where we have more complex regular expressions more creative 
solutions may be required. You are free to use considerable discretion in
formulating your approach. 

Please make sure to begin your program with a  complete description of 
your methodology that provides both explanation  and examples of what you 
have done. This description will be the basis upon which I judge your 
ouput (did you get the results your description would imply) so please 
make it as clear and complete as possible. Do not break it up into 
multiple sections scattered throughout the code, rather keep in as a 
single self contained piece of writing and insert it as a single block
of comments at the start of your program. 

Also, make sure to provide me a description of your command line syntax
so I can run your program. 

Good luck!