Link Structure Changed

Well, the link structure in preverbal messages is actually functional now. Instead of simply being a string representation of the link structure, preverbal messages have a tree structure that represents the link structure. These tree structures have three types of nodes: "and", "or", "lemma", and "link". They each have different satisfaction requirements. "and" nodes are satisfied iff all of their children are satisfies. "or" nodes are satisfied iff exactly one of their children is satisfied. "lemma" nodes are satisfied iff their only child is satisfied (these generally are the root of a PVM). "link" nodes are only satisfied if they have been joined to a link node in another PVM. The whole importance of satisfaction is mentioned in a short paper I'm still in the process of revising. Once its done I'll post a link to it here.