What is the Rhyme Scheme in William Blake's poem "London"?

What functions as a reflexive pronoun in the sentence the professor herself wanted to attend the conference, but it was cancelled when she and several other presenters had to excuse themselves

This is a set of words that begins with a preposition.

In at least one hundred words, explain how the structure of elizabeth bishop’s “sestina” to convey meaning in the poem. provide specific evidence from the text to support your response.