return senior; }
	public Senior run(Person person) {		Senior senior = null;		final Registration registration = person.getStudentByType(DegreeType.DEGREE);		if (registration == null) {			return null;		}		final StudentCurricularPlan studentCurricularPlan = registration.getActiveStudentCurricularPlan();		if (studentCurricularPlan == null) {			return null;		}		final DegreeCurricularPlan degreeCurricularPlan = studentCurricularPlan.getDegreeCurricularPlan();		final Degree degree = degreeCurricularPlan.getDegree();		senior = registration.getSenior();		if (senior == null) {			final int curricularYear = registration.getCurricularYear();			if (curricularYear == degree.getDegreeType().getYears()) {				senior = new Senior(registration);			} else {				return null;			}		}		return senior;	}