Please capitalize where necessary: the best thing to do is get your opponent to fold before you ever have the chance to get counterfeited.
A: The best thing to do is get your opponent to fold before you ever have the chance to get counterfeited.

Please capitalize where necessary: both backslash and doubled-quote escape rules are supported.
A: Both backslash and doubled-quote escape rules are supported.

Please capitalize where necessary: groups (min. 20 people): 20% discount
A: Groups (min. 20 people): 20% discount

Please capitalize where necessary: english noun: whole number
A:
English noun: whole number