Please capitalize where necessary: in relation to life after death, humankind is divided into two groups, the "believers" and the "non-believers".
A: In relation to life after death, humankind is divided into two groups, the "believers" and the "non-believers".
Q: multiple machines are made available to debian developers for arm porting work: abel.debian.org (armel/armhf), asachi.debian.org (armhf/arm64) and harris.debian.org (armhf).

A: Multiple machines are made available to Debian developers for ARM porting work: abel.debian.org (armel/armhf), asachi.debian.org (armhf/arm64) and harris.debian.org (armhf).
Q: the fastest and easiest way to open your lbd file is to double-click it.
A: The fastest and easiest way to open your LBD file is to double-click it.
Problem: in addition he gave lecture courses on the foundations of mathematics, irrational numbers , and set theory. schappacher notes in however:
Can you repeat this sentence, but capitalize it?
Answer: In addition he gave lecture courses on the foundations of mathematics, irrational numbers , and set theory. Schappacher notes in however:
Text: amon goeth seems to be difficult to show their emotions and when he does it is becoming just wrong. actually, he's not as strong as he looks to be, yet he manages to almost always get everything their own way, just as he wants it.

Correct capitalization: Amon Goeth seems to be difficult to show their emotions and when he does it is becoming just wrong. Actually, he's not as strong as he looks to be, yet he manages to almost always get everything their own way, just as he wants it.
Text: keep all your phone numbers in convenient phone book.

Correct capitalization:
Keep all your phone numbers in convenient phone book.