What is considered farming for purposes of the FONCE exemption?

"Farming" is defined as the growing of crops, nursery products, timber or fibers, such as cotton, for human or animal use or consumption; the keeping of horses, cattle, sheep, goats, chickens or other animals for human or animal use or consumption; the keeping of animals that produce products, such as milk, eggs, wool or hides for human or animal use or consumption; or the leasing of the land to be used for the purposes herein described.