book one contains 120 poems on spring and autumn; book two , 40 poems on winter; book three , 20 poems on felicitations and laments as well as 20 poems on parting and travel; and book four , 160 poems on love and miscellaneous . 巻1春秋120首、巻2夏冬40首、巻3賀哀20首、別旅20首、巻4恋雑160首。
in the myth of ' yamasachihiko and umisachihiko ' compiled in the " kojiki ," there is an anecdote: hitohiro-wani (hitohiro shark ) accompanied hoori no mikoto (known as yamasachihiko ) on the way back to ashihara no nakatsukuni (literally ' central land of reed plains ,' which refers to the country or location of japan ) from watatsumi no miya (the palace of the tutelary of the sea ), and on parting with each other , hoori no mikoto gave hitohiro-wani (literally ' shark of 1 .818m ,' as ' hitohiro ' is a unit of length equivalent to 6-shaku or 1 .818m ) a knife with a string , which he had carried with him , and hung it to the neck of hitohiro-wani , to express his gratitude , therefore , hitohiro-wani became the deity currently known sahimochi no kami . 『古事記』にある山幸彦と海幸彦の神話に、海神宮から葦原中国に帰る火遠理命（ホオリ 山佐知毘古（山幸彦））を送った一尋和邇（一尋鰐）が、その御礼に、火遠理命が身に付けていた紐小刀を鰐魚の首につけてもらったので、この一尋和邇を、今謂う佐比持神(さひもちのかみ)とある。
