What are the faculty id and the number of students each faculty has?
SELECT T1.FacID ,  count(*) FROM Faculty AS T1 JOIN Student AS T2 ON T1.FacID  =  T2.advisor GROUP BY T1.FacID
SELECT T1.FacID ,  count(*) FROM Faculty AS T1 JOIN Student AS T2 ON T1.FacID  =  T2.advisor GROUP BY T1.FacID
[{'FacID': 1121, 'count(*)': 3}, {'FacID': 1148, 'count(*)': 3}, {'FacID': 2192, 'count(*)': 4}, {'FacID': 2311, 'count(*)': 3}, {'FacID': 5718, 'count(*)': 2}, {'FacID': 7134, 'count(*)': 2}, {'FacID': 7271, 'count(*)': 2}, {'FacID': 7712, 'count(*)': 1}, {'FacID': 7723, 'count(*)': 1}, {'FacID': 7792, 'count(*)': 1}, {'FacID': 8423, 'count(*)': 1}, {'FacID': 8721, 'count(*)': 1}, {'FacID': 8722, 'count(*)': 3}, {'FacID': 8723, 'count(*)': 1}, {'FacID': 8741, 'count(*)': 1}, {'FacID': 8772, 'count(*)': 3}, {'FacID': 8918, 'count(*)': 1}, {'FacID': 9172, 'count(*)': 1}]