In addition to that, he subclassifies (1) into metaphorical relationships, such as 'asatsuyu no kieyasuki inochi' (morning dew is easy to disappear, and the life of the human being is short as the duration of dew), the modificational relationship such as 'kusamakura tabi' (while traveling one uses the grass as a pillow), and the descriptive relationship such as 'no tsu tori kiji' (a pheasant is a bird living in the field), and subclassifies (2) into the instances of the repetition of the same pronunciation such as 'masoga yo soga no kora' (soga -- soga), and the usage of kakekotoba (pivot words) such as 'kaki kazou futakamiyama' ('kazoeru' precedes a Japanese old number 'futa').
さらには(1)を「朝露の　消易き命」のような譬喩的関係（朝の露は消えやすい、その露のようにはかない命）のものと、「草枕　旅」のような形容的なもの（旅は草を枕にするものであったので）と、「野つ鳥　雉」のような説明的なもの（野の鳥である雉）に分類し、(2)を「まそがよ　蘇我の子ら」のような（そが－そが、という）同音反復の例と、「かき数ふ　二上山」というような、「数える」から数字の「二」にかかる掛詞の用法とに分類している。