Database: hospital_1
Question: Find the names of all physicians and their primary affiliated departments' names (primary affiliation is 1).
SQL: select t1.name ,  t3.name from physician as t1 join affiliated_with as t2 on t1.employeeid  =  t2.physician join department as t3 on t2.department  =  t3.departmentid where t2.primaryaffiliation  =  1