Add punctuation: classic Italian group vintage
A: classic, Italian, group, vintage
QUESTION: Fix punctuation: Materials DROPS Merino Extra Fine from Garnstudio
ANS: Materials: DROPS Merino Extra Fine from Garnstudio
QUES: A lack of sleep can leave the body and mind feeling exhausted creating anxiety and stress

correct the punctuation.

CORRECTED: A lack of sleep can leave the body and mind feeling exhausted, creating anxiety and stress.
Question: Product description Metallic colored barrel shinning chromed middle rings and trims Metal clip
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Answer: Product description: Metallic colored barrel, shinning chromed middle rings and trims. Metal clip.
All of them spoke a bit of French two had studied it at university and the other had lived in France when he was young

Can you repeat this sentence, but add in punctuation?
All of them spoke a bit of French: two had studied it at university, and the other had lived in France when he was young.
QUESTION: Fix punctuation: According to the head authors a group of researchers undertook an extensive survey taking a large step forward in spreading light into the darkness
ANS:
According to the head authors, a group of researchers undertook an extensive survey, taking "a large step forward" in spreading light into the darkness.