In people with dwarfism lacking the ability to produce growth hormone itself or it is enough selfproduced not to

Can you repeat this sentence, but add in punctuation?
In people with dwarfism lacking the ability to produce growth hormone itself, or it is enough self-produced not to.
This is where JayZ enters the story

Can you repeat this sentence, but add in punctuation?
This is where Jay-Z enters the story.
And a Second Look of CP Snow Direct quote of the original text

Can you repeat this sentence, but add in punctuation?
And a Second Look. of C.P. Snow (Direct quote of the original text. )