there is a refrigerator as well as a big freezer in the apartment.

How would the previous sentence be correctly capitalized?
Answer: There is a refrigerator as well as a big freezer in the apartment.
the symposium is for everyone in our network that is large and broad, local and international.

How would the previous sentence be correctly capitalized?
Answer: The symposium is for everyone in our network that is large and broad, local and international.
some of the website will require you to email the information, while others simply have a form to fill out and wait for approval.

How would the previous sentence be correctly capitalized?
Answer: Some of the website will require you to email the information, while others simply have a form to fill out and wait for approval.
based on the detection of cyclohexanone, diethylglycol dibenzoate, n-propylbenzamide + n-acetylbenzamide.

How would the previous sentence be correctly capitalized?
Answer: Based on the detection of cyclohexanone, diethylglycol dibenzoate, N-propylbenzamide + N-acetylbenzamide.