Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Nutritious and a great Training Tool.

My dogs love these and it takes several minutes for them to be ate.Good training tool for many different situations.One example where I use them for training is to teach dogs not to follow my vehicle. I hand them a pigs ear and then can drive out. After a few times, my dog no longer follows with or with out the pigs ear.I have German Shepherds and they desire to be with me every chance which is a good trait of the German Shepherd, but, that also needs to be guided. The Pigs Ears work great for that.This particular place is the best value I have found. Free shipping and the box of 100 makes a .75 cent nutritional value and training toolThe indoor dogs love them as well. We have a small Pekinees that loves them too. Just takes him longer to eat them