What is the name of the community that has the highest number of crimes related to prostitution?
name of the community refers to community_area_name; the highest number of crimes refers to max(case_number); prostitution refers to primary_description = 'PROSTITUTION'
SELECT T3.community_area_name FROM Crime AS T1 INNER JOIN IUCR AS T2 ON T1.iucr_no = T2.iucr_no INNER JOIN Community_Area AS T3 ON T1.community_area_no = T3.community_area_no WHERE T2.primary_description = 'PROSTITUTION' GROUP BY T1.iucr_no ORDER BY T1.case_number DESC LIMIT 1