The content blade looks for matches to the Washington driver’s license pattern and words and phrases such as driver’s license and license number and terms such as WA or Washington.

Driver's license pattern: 5 Alphabetic (last name), 1 Alphabetic (first name), 1 Alphabetic (middle name), 3 Numeric, 2 Alphanumeric. If last or middle name field falls short, fill with *s.