Riddle: A young woman enjoys riding around on a large machine which has huge tires on the back and smaller tires on the front. She rarely carries any passengers. At times, she takes her machine on the highway, but she prefers to drive off-road to accomplish her missions. Her machine is not built for speed, as she can only reach a top speed of 25 mph. The strange thing about this woman is her hatred of grass --- she allows only a small patch of grass to exist on her property. To accomplish this, the young woman loves to use her large machine to tear up the ground on her property, until only a small portion of grass remains around her home. What is this woman's occupation, and what is the machine she uses in her profession?
Answer: The young woman is a farmer, and the machine she uses is a tractor.