What is the ranking criteria ID of Brown University in 2014?
Brown University refers to university_name = 'Brown University'; in 2014 refers to year = 2014
SELECT T1.ranking_criteria_id FROM university_ranking_year AS T1 INNER JOIN university AS T2 ON T1.university_id = T2.id WHERE T2.university_name = 'Brown University' AND T1.year = 2014