These two components allow for two means of list organization. Shear List takes a list of data and creates two lists, one with the last item removed and a second with the first item removed creating a staggered pair of lists making value comparisons simple. ex. (A,B,C,D,E)  = (A,B,C,D) & (B,C,D,E). Pair takes a list and creates a datatree with pairs of sequential values from the list. ex. (A,B,C,D,E) = [A,B] , [B,C] , [C,D] , [D,E]