In Dill town, you can only buy fruits at Pepper's Store, and you can only buy office products at Rosemary's Store. In a strange coincidence, any time Basil is at Pepper's Store, Lily is at Rosemary's Store, and any time he is at Rosemary's Store, she is at Rosemary's Store. Basil is buying fixed shelf bookcases. Where is Lily?