Context units can be the same as the units sampled, although they are not always the same. Since it is not always practical to use long documents as context units, chapters, sections, paragraphs, or even sentences may be better choices. This is especially true when attempts are made to identify subtle differences in content. For example, a meeting transcript can be analyzed to determine the extent to which the meeting’s participants supported or opposed various issues. In this case, the analysts would choose sentences as the context unit if entire statements were relatively long and tended, as sometimes happens, to contain conflicting information. It may be typical for a given speaker to oppose an issue at the beginning of a statement but to shift to support of it at the end. To identify such shifts in position, analysts need to examine a small content unit such as the sentence.