Part 2 (10 marks) Given a database consisting of one first normal form relation FIRST with attributes {A, B, C, D, E, F, G, H, I, J and the functional dependencies as well as the dependency diagram as follows FIRST Functional Dependencies {AB - C, A-> DE, B-F, E-D, F-GH, D IJ Dependency Diagram What is the key for FIRST? (2 marks) Normalize FIRST into second normal form by giving the relation names, their attributes with primary keys underscored and foreign keys pointing to the corresponding attributes properly and its dependency diagrams as showing above (4 marks) Normalize the result in the second question into the third normal form by giving the relation names, their attributes with primary keys underscored and foreign keys pointing to the corresponding attributes properly and its dependency diagrams as showing above (4 marks) 1. 2. 3