Discuss any two drawbacks of Apriori algorithm. Find frequent item-sets and association rules from the transaction database given below using FP-growth algorithm. Assume minimum support is 50% and minimum confidence is 60%.

Transaction_ID	Items purchased
1	Sausage, peanut, Beer
2	peanut, Beer, Apple
3	Apple, Milk
4	Sausage, peanut, Apple
5	Sausage, peanut, Beer, Milk
6	Sausage, peanut, Beer, Apple