Yes, ruby In which I had faced this problem.
Thanks, for taking care of it.

to pass main test case we need to edit mather name to all lowercase

I am getting following error on attempt only "<main>': undefined method are_you_playing_banjo' for main:Object (NoMethodError)
Did you mean? areYouPlayingBanjo"

I was unable to solve so I have use option to unlock solution and checked how to solve it.

http://rubular.com/ here you can try differnt regex. Regex quick reference make it more easy to understand.
Thaanks :)

Thanks

Thanks for your suggestion. I am just practising not done this for any reason. Atlest I have used small solution then you.

Thanks

Thanjs :)