Groovy help - just a few lines of code needed immediately.

I need a groovy function that will loop through an object and replace the keys if there is a match in another java object. Here are my 2 example objects. def sys1data2 = ["patientinfo":[ "accountname":"123457900", "account_no":"ACC64", "phone":"4075551212", "website":"[login to view URL]" ], "orginfo":[ "accountname":"123457900", "account":"ACC64", "phe":"4075551212", "website":"[login to view URL]" ] ] def replaceKeysWith = ["orginfo":[ "accountname":"accname", "account_no":"accnum", "phone":"phonenum", "website":"webadd", "phe":"pho", "account":"pid" ], "patientinfo":[ "accountname":"accname", "account_no":"accnum", "phone":"phonenum", "website":"webadd", "phe":"pho", "account":"pid" ] ] Need a function that returns this as output. Output = "patientinfo":[ "accname":"123457900", "accnum":"ACC64", "phonenum":"4075551212", "webadd":"[login to view URL]" ], "orginfo":[ "accname":"123457900", "account":"ACC64", "pho":"4075551212", "webadd":"[login to view URL]" ] ]