Please capitalize where necessary: mario and friends are driving tractors through the stages.
A: Mario and friends are driving tractors through the stages.

Q: he thought that it could be because the earth is round, and then he could quite carefully calculate how big the earth is.

A: He thought that it could be because the earth is round, and then he could quite carefully calculate how big the earth is.

Q: attention! we offer all our clients only high quality medicine quinine sulphate.
A: Attention! We offer all our clients only high quality medicine Quinine sulphate.

Problem: - share photos with facebook, twitter and messages applications installed on blackberry.
Can you repeat this sentence, but capitalize it?
Answer: - Share photos with Facebook, Twitter and Messages applications installed on BlackBerry.

Text: the potential outcome of the classification of electronic cigarettes and related products other than general purpose recreational products would effectively lock electronic cigarette related small businesses out of the market by handing the future of vaping into the hands of an industrial group that is not just uninterested in sustaining the current quality levels and wide range of selection but is counter-interested in serving the needs of users of vaping devices.

Correct capitalization: The potential outcome of the classification of electronic cigarettes and related products other than general purpose recreational products would effectively lock electronic cigarette related small businesses out of the market by handing the future of vaping into the hands of an industrial group that is not just uninterested in sustaining the current quality levels and wide range of selection but is counter-interested in serving the needs of users of vaping devices.

Please capitalize where necessary: while in the united states he also visited princeton. adams said:
A:
While in the United States he also visited Princeton. Adams said: