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I think I 'm leaning toward The Grass Harp only because it has " harp " in the title . The word " lens " in the title reflects levels of meaning within the collection as a whole . Similarly , simple legislation aimed at requiring advertisers to put " ADV " in the title as some have proposed is not a tenable solution . Search Math Reviews or Zentralblatt for papers by me , by Renling Jin , and / or by Shelah with terms like " special model axiom " or " isomorphism property " in the title .