If I receive a string below with syntax error from a noSQL db that stores it in this exact format, how can I assign it to a variable and "correct" the syntax error during runtime. With assumptions that I cannot change how it is stored on a database.

Since this is a syntax error I can't even use string functions like replace or regex to remove the extra quotations enclosing the phone number. 

string = "John Doe "(123) 456-7890""

Desired final result would be for it to not throw a syntax error and compile.
I'd appreciate any help I can get. Thanks.