Instruct: Classify Amazon reviews into positive or negative sentiment
Query: good, same content with the 4 edition

i bougth this product for my epidemiolody class. i was supose to buy the 4 edition. instead i bougth the 3 edition. in class i realise that contents in botrh books are the same. no differrence except the edition. lol. i strongly recommand this book to student enrolled in public health