How does AI know?

Humans reason is based on our knowledge and draw conclusions about some topic. The concept of representing knowledge and drawing conclusion from it also is used in AI. In this context, knowledge is used by knowledge-based agents, where information is represented internally in the computer. With those pieces of information, we can infer that it did rain and that I didn't go to my dad's house. Now let's see how AI can use the logic we did to draw conclusions.