Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cranium Fort was just what my 4 year old needed!

My son is addicted to fort building... you know with chairs, blankets or anything he can find. When I saw this Cranium Super Fort product, I knew it was just what he needed. Cranium has made the styrofoam beans and interlocking balls so easy that a four year old can put it together by himself. He even knows how to clip on the nylon fabric so he can hide in the fort. Sometimes he still wants to extend the fort with other blankets and chairs, but overall you can make a pretty nice size fort, ship, space station or whatever else you can think up. It is also very compact and can be put away in an easily portable bag. We also bought the twisty tunnel to add to the fun of him climbing into his fort. Cranium is so smart!