QUESTION: Fix punctuation: The first painting is of Christian V in front of Copenhagen Castle
ANS: The first painting is of Christian V in front of Copenhagen Castle.
QUES: Royal power in the Viking Age was however very fragile

correct the punctuation.

CORRECTED: Royal power in the Viking Age was, however, very fragile.
Question: Hot transfer Rhinestone Trimming Hot fix Rhinestone on metallic Fabric Ironon Crystal looks accessories
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Answer: Hot transfer Rhinestone Trimming, Hot fix Rhinestone on metallic Fabric, Iron-on Crystal looks accessories
This depends on the switches used and the distance from the main distributor or switch

Can you repeat this sentence, but add in punctuation?
This depends on the switches used and the distance from the main distributor or switch.
input: Software Business FinancePresentation Tools FlashSpring Pro 2 Disabled
fixed: Software: Business & Finance:Presentation Tools > FlashSpring Pro 2 (Disabled)
What to do with anxiety and depression

Can you repeat this sentence, but add in punctuation?
What to do with anxiety and depression?