The conversation between human and AI assistant.
[|Human|] Write a sentence that expresses the theme of the following short story.
[|AI|] The theme of the short story is bravery and heroism, as it portrays the tale of a valiant knight who embarks on daring quests to protect his kingdom from the threat of dragons.
[|Human|] 
Write a sentence that expresses the theme of the following short story.