She vs ya

She

noun
  • A language of the Hmong-Mien language family spoken by the She people. 

  • An ethnic group in southern China. 

ya

noun
  • A letter of the Cyrillic alphabet: Я, я. 

adv
  • yea; yes 

intj
  • Go. (Spoken to horses and cattle.) 

  • Yeah; yes. 

How often have the words She and ya occurred in a corpus of books? (source: Google Ngram Viewer )