A well-organized paragraph will not contain any sentences that do not contribute to the idea the author wants to get across. An adequate statement of main idea will cover only the ideas presented in the paragraph. If a statement covers any ideas not presented in the paragraph, it is irrelevant The ideas in the statement may be related to the main idea of the paragraph, but unless the idea in the statement were actually discussed in the paragraph, it is irrelevant. For example a statement describing methods of planting corn which read "Corn has many valuable vitamins would be irrelevant unless the paragraph also covered nutrition The statement was about the same broad subject as the paragraph, but the idea discussed in the statement is irrelevant to the main idea. paragraph. If a statement contains ideas which are not actually part of the paragraph, you should mark it "irrelevant