Task: Text Categorization
Input (English): Much of this tissue's extracellular matrix consists of proteoglycans, primarily aggrecan bound to a hyaluronan backbone. The aggrecan core protein is heavily glycosylated by keratin sulfate and chondroitin sulfate, making it very negatively charged and extremely hydrated, properties which lead to its cushioning effect. Collagen fibrils give the matrix tensile strength, while the chondrocytes make up only a small percentage of tissue volume. FTP, name this non-vascular tissue that is found in the trachea, ear lobes, at the tip of the nose, and in joints.
Output (English): Science