where now q1 and q2 are the electrical charges and the dielectricity constant in vacuum

Can you repeat this sentence, but add in punctuation?
where now q1 and q2 are the electrical charges, and the dielectricity constant in vacuum.
Some of the other reasons such as virus infection improper file transfer process sudden system shut down and others contribute to MOV file corruption

Can you repeat this sentence, but add in punctuation?
Some of the other reasons such as virus infection, improper file transfer process, sudden system shut down and others contribute to MOV file corruption
Upgrading to WordPress 25 Step 3 Similar Posts Library

Can you repeat this sentence, but add in punctuation?
Upgrading to WordPress 2.5 - Step 3 - Similar Posts + Library