Instruct: Classify a given review as either positive or negative.
Query: Hours of fun

Our four year old grandson had asked me to make a paper airplane, and we began. I found this book on a shelf at our daughter's house, where it had rested dormant for eight years The planes are easy to make, colorfully attractive and they fly. We had hours of fun seeing which designs worked best and staging contests. I bought another book for my own home for use with other grandchildren.