This is an essay with only three paragraphs.The first two paragraphs should be the same construction. They will discuss two branches of a large topic (keyword), respectively. Such as: love (Dedication and selfishness）Their structure should be: 1. Topic sentence. 2. Introduce evidence + contextualize. 3. Evidence (Excerpts from the article.）4. Analysis. 5. Conclusion.
In the third paragraph, the two branches are compared or analyzed.