QUES: It has a capacity for up to 4 people

correct the punctuation.

CORRECTED: It has a capacity for up to 4 people.

QUES: Grenache is aged in tank and Syrah in barriques for 12 months

correct the punctuation.

CORRECTED: Grenache is aged in tank and Syrah in barriques for 12 months.

QUES: Age deaths and cause of death

correct the punctuation.

CORRECTED:
Age, deaths and cause of death