sentence: A person is sharpening a knife. sentence:  The title is seen on a black screen and we see the tools. sentence:  Instructions and demonstrations instructs us to wet the stone. sentence:  We are then instructed and shown how to slide the knife on the stone. sentence:  We are instructed and shown how to use the sharpening steel. sentence:  We are instructed and shown how to use a bowl to sharpen a knife. sentence:  We are shown the knife cutting tomatoes. sentence:  The title re-appears on the black screen.