2. We are modelling a database for storing students and their marks. Students have an id number and name, and receive marks for a series of assignments, each of which has in id number and a title. A student does a given assignment only once we record the date that the student submitted the assignment. Our modeller has arrived at the following relation (primary key is underlined). STUDENTMARKS (studentid, givenName, surname (assignmentId, assignmentTitle, mark, dateSubmitted)) But this relation is not in third normal form. First, explain why it is not. Second, convert the relation to 3rd normal form.(1st convert 1NF to 2NF after that convert 2NF to 3NF) Mark your primary keys with a solid underline, and your foreign keys with a dotted underline.