Choose a text (i.e., a poem, a song, an advertisement, etc., and preferably one not discussed in class) and specifically explain how it may be treated as a poem.

the task the prof gave us:
Choose a text (i.e., a poem, a song, an advertisement, etc., and preferably one not discussed in class) and specifically explain how it may be treated as a poem. Although you will likely need to provide a brief analysis of the text and explain “what the poem means”, the focus of the essay is on explaining how the text is a poem rather than providing a length analysis of the poem’s meaning.