- Write a possible regular expression that expresses the following pattern matching requirement: Concordia Email - First section should match first and last names of the user (word characters). The length of the first or last name should be greater than one. First and last names are separated by a dot".". The first section must be followed by a @ symbol. The last section should match the department of the user (word characters of any length except zero and must not include an underscore " "). A single period" "must follow along with concordia.ca at the end. No spacing is allowed within the pattern. As an example, the regular expression should match: chun.wang@ciise.concordia.ca" - Write a possible regular expression that expresses the following pattern matching requirement: Concordia Email - First section should match first and last names of the user (word characters). The length of the first or last name should be greater than one. First and last names are separated by a dot".". The first section must be followed by a @ symbol. The last section should match the department of the user (word characters of any length except zero and must not include an underscore " "). A single period" "must follow along with concordia.ca at the end. No spacing is allowed within the pattern. As an example, the regular expression should match: chun.wang@ciise.concordia.ca