premise: W follows the ( useful ) practice of listing a shortened pronunciation key on each right-hand page ; L 's failure to do so is a disadvantage , notwithstanding the simplicity of their system , for the user must ferret about to find the description given on page xxii to clarify any question and true is true and true is true and true is true and true is true and true is true .
hypothesis: W has no pronunciation guide at all , while L provides one on every page .