This pattern matches the specified targets by combining multiple patterns for emails, dates, hex codes, and serial keys. It uses character classes, quantifiers, and alternation to match the target items exactly, while avoiding matches with invalid items. The email pattern matches one or more alphanumeric characters, dots, underscores, percent signs, plus signs, or hyphens, followed by '@', then one or more alphanumeric characters, dots, or hyphens, a dot, and the domain extension. The date pattern matches either 'YYYY/MM/DD' or 'DD-MM-YYYY'. The hex code pattern matches a '#' followed by 6 or 7 hexadecimal digits. The serial key pattern matches 3 groups of alphanumeric characters separated by hyphens.