Consider the relation schema EMP_DEPT in Figure lO.3a and the following set G of functional dependencies on EMP_DEPT: G = {SSN -7 {ENAME, BDATE, ADDRESS, DNUMBER}, DNUMBER -7 {DNAME, DMGRSSNn....

Consider the relation schema EMP_DEPT in Figure lO.3a and the following set G of

functional dependencies on EMP_DEPT: G = {SSN -7 {ENAME, BDATE, ADDRESS, DNUMBER},

DNUMBER -7 {DNAME, DMGRSSNn. Calculate the closures {SSN}+ and {DNUMBER}+ with respect