in the past years venezuela never had demonstrations on the streets or general strikes.

How would the previous sentence be correctly capitalized?
Answer: In the past years Venezuela never had demonstrations on the streets or general strikes.
i have discovered a vulnerability: and now what?? securityartwork

How would the previous sentence be correctly capitalized?
Answer: I have discovered a vulnerability: And now what?? SecurityArtWork
here, you can see notes from diaries, pages from manuscripts, and even an invitation to darwin's funeral.

How would the previous sentence be correctly capitalized?
Answer: Here, you can see notes from diaries, pages from manuscripts, and even an invitation to Darwin's funeral.
the product cosplay wig in white and pink with 2 straight hair clips 110 cm 'cp004' has been added to comparison list.

How would the previous sentence be correctly capitalized?
Answer: The product Cosplay Wig in White and Pink with 2 Straight Hair Clips 110 cm 'CP004' has been added to comparison list.