sentence: A man in a red polo shirt demonstrates the Kleva Sharp sharpener. sentence:  He sharpens a dull butcher knife and cuts a tomato. sentence:  The man in the red polo shirt then sharpens a dull steak knife and cuts a tomato into slices and then he cuts a cucumber into slices. sentence:  The man demonstrating the Kleva Sharpener, he sharpens a garden clipper and slices a carrot. sentence:  The demonstrator then sharpens a serated bread knife and slices a loaf of bread. sentence:  A series of demonstrations of different knives cutting different foods. sentence:  The Kleva Sharpener is dismounted from the table and stored in a cabinet drawer. sentence:  The Kleva Sharpener is mounted on the refrigerator on a wall and on the table. sentence:  He demonstrates the locking mechanism.