SELECT T1.Name FROM Tourist_Attractions AS T1 JOIN VISITORS AS T2 JOIN VISITS AS T3 ON T1.Tourist_Attraction_ID = T3.Tourist_Attraction_ID AND T2.Tourist_ID = T3.Tourist_ID WHERE T2.Tourist_Details = "Alison" EXCEPT SELECT T1.Name FROM Tourist_Attractions AS T1 JOIN VISITORS AS T2 JOIN VISITS AS T3 ON T1.Tourist_Attraction_ID = T3.Tourist_Attraction_ID AND T2.Tourist_ID = T3.Tourist_ID WHERE T2.Tourist_Details = "Rosalind"
Apa nama objek wisata yang dikunjungi Alison tetapi Rosalind tidak mengunjungi?
CREATE TABLE VISITS (Tourist_Attraction_ID VARCHAR, Tourist_ID VARCHAR); CREATE TABLE VISITORS (Tourist_Details VARCHAR, Tourist_ID VARCHAR); CREATE TABLE Tourist_Attractions (Name VARCHAR, Tourist_Attraction_ID VARCHAR)