Create an entity based on the following requirement:

$1.$ For each doctor, we will keep track of a DoctorID $($unique$),$ DoctorName, and

DoctorYearOfMDGraduation $($year of graduating from medical school$).$

$2.$ For each doctor, we will keep track of a DoctorID $($unique$),$ DoctorName $($composed of

first and last name$),$ and DoctorYearOfMDGraduation $($year of graduating from medical

school$).$

$3.$ For each doctor, we will keep track of a DoctorID $($unique$),$ DoctorLicense $($unique$,$

composed of LicenseNo and State$),$ DoctorName, and DoctorYearOfMDGraduation

$($year of graduating from medical school$).$

$4.$ For each doctor, we will keep track of a DoctorID $($unique$),$ DoctorName,

DoctorYearOfMDGraduation $($year of graduating from medical school$),$ and one or more

specializations.

$5.$ For each doctor, we will keep track of a DoctorID $($unique$),$ DoctorName,

DoctorYearOfMDGraduation $($year of graduating from medical school$),$ and

DoctorYearsPracticing $($how many years the doctor has been practicing medicine$).$ ER Diagram for this