Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My grandson loved this!

My 5 yr. old grandson loved this set so much that I had to go out and get him more pieces so he could make more things. I knew he loved his Legos and wasn't sure he would like this set since the pieces are pretty simplistic. But he's a very, imaginative creative kid. He called me up after getting the set and proudly told me he had made a huge airplane with his tinkertoys and that it was a lot of work!