A comparative sentence expresses an ordering relation between two sets of entities with respect to some common features. For example, the comparative sentence “Canon’s optics are better than those of Sony and Nikon” expresses the comparative relation Comparing one thing with another is a typical part of human decision making process. However, it is not always easy to know what to compare and what are the alternatives. To address this difficulty, we present a new way for automatically extracting comparable entities from comparative questions based on the pattern. We propose new techniques based on these two types of sequential rules to perform the tasks.