Add punctuation: Otis Cole was a farmer a dealer in lumber having an involvement in manufacturing who also had an interest in mathematics
A: Otis Cole was a farmer, a dealer in lumber having an involvement in manufacturing, who also had an interest in mathematics.

Add punctuation: New Design South Korea Jade Set Necklace Bracelet and Matched Earrings
A: New Design South Korea Jade Set ( Necklace Bracelet and Matched Earrings )

Add punctuation: A refrigerator is provided for added convenience
A:
A refrigerator is provided for added convenience.