I am not very sure but I would probably use on the other hand or therefore.
The one device that is most commonly associated with poetry by the general public is the Rhyme Scheme or simply, Rhyme. It uses words with different beginning sounds but whose endings sound alike, including the final vowel sound and everything following it. It is applied in an alternating method which in a stanza, follows mostly this format: a-b-a-b where the first and third line rhyme, while the second and fourth line rhyme.
The first one is the one without the appositive phrase.