First couple results when you search “abbreviate rest to rip” it’s not rocket science
https://www.google.com/search?q=abbreviate+resp+to+rip&rlz=1C1CHBF_enUS826US826&oq=abbreviate+resp+to+rip&aqs=chrome..69i57.4609j0j7&sourceid=chrome&ie=UTF-8