The conversation between human and AI assistant.
[|Human|] Go through the given set of facts and generate rules for them.
[|AI|] Rule 1: The size of elephants is greater compared to cats.
Rule 2: The vocalization of dogs is characterized as barking.
Rule 3: Ducks have the ability to swim in water.
[|Human|] 
Go through the given set of facts and generate rules for them.