these data sheets are presented in pdf-format.

How would the previous sentence be correctly capitalized?
Answer: These data sheets are presented in PDF-format.
if the symbols on mechanical reels or on a video screen match you are a winner. brightly colored symbols are easily recognizable.

How would the previous sentence be correctly capitalized?
Answer: If the symbols on mechanical reels or on a video screen match you are a winner. Brightly colored symbols are easily recognizable.
sunday 11 february, 2018 61844698 requests since tuesday 16 december, 2003

How would the previous sentence be correctly capitalized?
Answer: Sunday 11 February, 2018 61844698 requests since Tuesday 16 December, 2003
we use polyurethane glue (pur).

How would the previous sentence be correctly capitalized?
Answer: We use polyurethane glue (PUR).