Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Functions just as promised

Puzzle glue works very well. Included spreader is very handy. Glue can seep through cracks in the puzzle, however, and glue your puzzle to the surface beneath. Make sure you do the front side first before doing the back to seal up all these cracks so that the front doesn't get damaged when you pour the glue on the back.