1) Insert into Patient Group
            (PatientID, GroupID)
    Value(1, A)
2) Insert into Patient Group
            (PatientID, GroupID)
     Value(2, A)
3) Insert into Patient Group
             (PatientID, GroupID)
     Value(3, A)
4) Insert into Patient Group
             (PatientID, GroupID)
     Value(4, A)
5) Insert into Patient Group
             (PatientID, GroupID)
     Value(5, A)
6) Insert into Patient Group
             (PatientID, GroupID)
     Value(6, A)
7) Insert into Patient Group
             (PatientID, GroupID)
     Value(7, B)
8) Insert into Patient Group
             (PatientID, GroupID)
     Value(8, B)
9) Insert into Patient Group
             (PatientID, GroupID)
     Value(9, B)
10) Insert into Patient Group
             (PatientID, GroupID)
     Value(10, B)
11) Insert into Patient Group
             (PatientID, GroupID)
     Value(11, B)
12) Insert into Patient Group
             (PatientID, GroupID)
     Value(12, B)