QUESTION: Fix punctuation: In addition to black and white ethnic groups there was a class of mulattoes who were important in business and as land owners
ANS: In addition to black and white ethnic groups there was a class of mulattoes who were important in business and as land owners.

QUESTION: Fix punctuation: If you walk contrary to me and wont listen to me I will bring seven times more plagues on you according to your sins
ANS: If you walk contrary to me, and won't listen to me, I will bring seven times more plagues on you according to your sins.

QUESTION: Fix punctuation: So we see that the mentioned epoch of dark experiences cannot possibly have been brought about by a previous nothing
ANS: So we see that the mentioned epoch of dark experiences cannot possibly have been brought about by a previous "nothing".

QUESTION: Fix punctuation: The citation for this prize reads
ANS:
The citation for this prize reads: