The thesis statement will reflect the kind of paper being written. There are three kinds of papers: analytical, expository, and argumentative. The structure of a thesis statement depends upon the nature of controlling essay type. In simple terms, first a thesis statement will have a main topic sentence formed from questioning the topic, then the writer's statement regarding the topic sentence, and finally ends with the specific supporting points detailing the writer's statement for justifying its relation with the topic sentence. In general, it should have a supportable opinion (specific/focused) and clear intent for the essay.