> "Striking thirteen" refers to the 24-hour clock system, also known as military time, where 1 PM is 13:00, 2 PM is 14:00, and so on until 12 midnight is 0:00.

> In the context of George Orwell's "1984," the phrase "the clocks were striking thirteen" is significant for a few reasons. First, it introduces a sense of unease or strangeness for readers accustomed to the 12-hour clock system, where clocks do not strike thirteen. This foreshadows the unusual and unsettling nature of the world to be described in the book. Second, it symbolizes the extensive control of the totalitarian regime in the book, which extends even to the way time is told. Finally, it sets the stage for the novel's exploration of how power can be used to control not only people's actions, but their perceptions of reality.

The Llama response isn't terrible, but the GPT-4 response is better (albeit verbose).