text: Cheung and Klots use this datastructure to store intermediate computations in computing the CDF of the Mann-Whitney-Wilcoxon distribution.  
full_question: Cheung and Klots use this datastructure to store intermediate computations in computing the CDF of the Mann-Whitney-Wilcoxon distribution.  This was the subject of the 1975 Turing Award and was first implemented at the RAND corporation for the IPL language by Newell and Simon, and one is constructed using the "cons" command in LISP.  For 10 points, what is this basic datastructure that chains data items together with forward pointers?
first_sentence: Cheung and Klots use this datastructure to store intermediate computations in computing the CDF of the Mann-Whitney-Wilcoxon distribution.  