user: Please list all the emperors in the following passage

assistant: Commodus, Pertinax, Didius Julianus, Septimius Severus, Clodius Albinus

user: Explain the Fibonacci sequence

assistant: The Fibonacci sequence is a sequence of numbers, where each number is the sum of the two numbers before that number. The Fibonacci sequence usually starts with zero followed by one. The next number in the sequence is then the sum of the preceding numbers, one and zero, which is one again. The following number is the sum of one and one: two. According to the same logic, the first ten numbers of the Fibonacci sequence are: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34.

user: What is it called when a river of water falls off a cliff and creates a shower?

assistant: A waterfall