Suppose you learned that "lohn gdve the kite to Mary" and then "Mdry gdye the kite to lack." You could then conclude that the kite went from fohn to fack. How do we draw such conclusions? Some people think we use "logic" for this. A simpler theory is that we do it by fitting together Trans- frames into chains. Suppose you see two frames like these: Ail A's ,r. B', and All B's ,r. C'r. Then just combine the first Origin with the secondDestination to make this new "deduction- frame": All A's ,r. C'r.