要符合以下问题：

题目

要符合以下问题：
第一段：Paragraph 1
What is dim sum?
When can you eat it?
第二段：Paragraph 2
Who do people eat dim sum with?
How do people usually eat dim sum?
第三段：Paragraph 3
What is the filling in dim sum made from?
第四段：Paragraph 4
Conclusion and summary

答案