i want to add qutation marks to a position in my string.
At one use case i can´t find a solution.

Input: &LOG Part_Name: vacuum gripper
Output:&LOG Part_Name: “vacuum gripper”

problem use case:
Input: &LOG Part_Name: “blind plug
Output should be: &LOG Part_Name: “blind plug”

            string pattern = @"(?<=Part_(Description|Name): )[^""s]+";


            //example input:&LOG Part_Name: mount
            //example output:&LOG Part_Name: "mount"
            //example input:&LOG Part_Name: "mount
            //example output:&LOG Part_Name: "mount"

            Match match = Regex.Match(partDes, pattern);

            if (match.Success)
            {
                string part = match.Value;
                if (!part.StartsWith(""") && !part.EndsWith("""))
                    part = """ + part + """;

                partDes = Regex.Replace(partDes, pattern, part);
            }

the correct pattern for both use cases