Please capitalize where necessary: one child under the age of 12 may stay free of charge when using existing bedding.
A: One child under the age of 12 may stay free of charge when using existing bedding.

Please capitalize where necessary: wheelchair accessible disabled toilet at café hacienda
A: Wheelchair accessible Disabled toilet at Café Hacienda

Please capitalize where necessary: high definition picture and sound quality in full screen
A: High definition picture and sound quality in full screen

Please capitalize where necessary: the city unites the latest technologies of the scientific and technical progress and the allure of an ancient province.
A:
The city unites the latest technologies of the scientific and technical progress and the allure of an ancient province.