Update sandy beach example

app.py

@@ -308,6 +308,7 @@ examples_list = [
     ["Build a prompt to generate a beautiful portrait of a horse"],
     ["Suggest four metaphors to describe the benefits of AI"],
     ["Write a pop song about leaving home for the sandy beaches."],
+    ["Write a pop song about having hot sex on a sandy beach."],
     ["Write a summary demonstrating my ability to tame lions"],
     ["鲁迅和周树人什么关系？ 说中文。"],
     ["鲁迅和周树人什么关系？"],