The fact "Similarity between a sunglasses and a kitchen table: both usually made in factories" is illustrated with the story:1. Bob used to work in quality control in a sunglasses factory.2. Bob moved to a new city.3. Bob found a new job doing the same thing that he did before.4. Bob found a job in quality control in a furniture factory.5. Bob found that making sunglasses and making kitchen tables both required quality control.