table: [['school', 'location', 'mascot', 'enrollment', 'ihsaa class', 'county', 'primary conference'], ['eastern hancock', 'charlottesville', 'royals', '348', 'a', '30 hancock', 'mid - hoosier'], ['indian creek', 'trafalgar', 'braves', '598', 'aaa', '41 johnson', 'mid - hoosier'], ['knightstown', 'knightstown', 'panthers', '397', 'a', '32 henry', 'mid - hoosier'], ['milan', 'milan', 'indians', '417', 'aa', '69 ripley', 'ohio river valley'], ['north decatur', 'greensburg', 'chargers', '397', 'aa', '16 decatur', 'mid - hoosier'], ['south decatur', 'greensburg', 'cougars', '316', 'a', '16 decatur', 'mid - hoosier']]
ref: North Decatur does not have Ohio River Valley as their Primary Conference
template: [ENT] does not have [ENT] as their [ENT]