(2) "Public corporation" means any public authority or other public corporation created by or pursuant to state law.

(3) "Public corporation" means the public authorities listed in paragraph (1) of this Code section, the Stone Mountain Memorial Association, and the Board of Regents of the University System of Georgia.

"public corporation" means the State of Georgia or any political subdivision thereof, any public agency of this state or of any political subdivision thereof, or any public board, bureau, commission, or authority created by the General Assembly [...]