Letters of the words want fairness.
They decided to appear same number of times in a sentence equally.
Each letter appears 3 times, as the most common letter was
i, appearing 3 times.
It does not matter where you put the repeated letters, as long as they are next to a similar letter.
Pppriooorritttieeesss is OK (the 'r' letter)
Ppprioororitttieeesss is not OK (the 'r' letter)
Space, comma, question mark, quotation, etc. are not considered letters for this challenge. Only need to consider [a-zA-Z]. Just once space is enough, and the order of the letters should remain the same.
The capitalization of letters does not matter, upper and lower case are countes as the same letter. That is:
Pip has 2 'P's and 1 'I', so it will become
It is case insensitive letters can be in any form,
This is code-golf