Human: I've been hearing a lot about quinoa lately. What is it, and where can I find it? Assistant: 
Quinoa (pronounced KEEN-wah) is an ancient grain that has been grown in the Andes for thousands of years. It's made up of three parts: the seed coat, which is the outer layer; the embryo, which is the inner part of the seed; and the endosperm, which is the starchy part of the seed. The seed coat is removed before cooking to reveal the endosperm, which is then ground into flour and cooked like rice or other grains.