-- Database schema
| school : School_ID [ INT ] primary_key , School [ TEXT ] , Location [ TEXT ] , Enrollment [ INT ] , Founded [ INT ] , Denomination [ TEXT ] , Boys_or_Girls [ TEXT ] , Day_or_Boarding [ TEXT ] , Year_Entered_Competition [ INT ] , School_Colors [ TEXT ] | school_details : School_ID [ INT ] primary_key school_details.School_ID = school.School_ID , Nickname [ TEXT ] , Colors [ TEXT ] , League [ TEXT ] , Class [ TEXT ] , Division [ TEXT ] | school_performance : School_Id [ INT ] primary_key school_performance.School_Id = school.School_ID , School_Year [ TEXT ] , Class_A [ TEXT ] , Class_AA [ TEXT ] | player : Player_ID [ INT ] primary_key , Player [ TEXT ] , Team [ TEXT ] , Age [ INT ] , Position [ TEXT ] , School_ID [ INT ] player.School_ID = school.School_ID |
-- -- Please show different denominations and the corresponding number of schools.

SELECT Denomination ,  COUNT(*) FROM school GROUP BY Denomination;