Okay quick question. Are you asking what type of figurative language is used or what is the figurative language in the sentence? If I know either of those, I can help you.
The answer is: The evidence is relevant but not sufficient.
The evidence is relevant enough to getting into an argument/ debate, and to question the claim, but it's not sufficient to win the claim. The claim is an statement in this case.
If you're not honest you won't learn and without learning you won't advance in English.
Poe is a very complex writer who loves to experiment and the poem "The Raven" is a valid proof of Poe's understanding of symbols in universal literature and his wish to explore and have control upon words and rhythm. The repetition of the word 'nevermore' comes to amplify the elegy that mourns the loss of the beloved Lenore. The effects the long vowels produce are shivering the readers' heart. Lord Byron himself experimented the play upon sounds in his poems before. Raven is the metamorphosis of a tragic love, a favourite symbol of death in many pieces of literature from ancient times. The visual contrast of a white bust like a ghost to the dark black raven in a "bleak" December, like in Dickens's "Bleak House", reinforce the tone of mourning a dear person.
In point of rhyme composition, the poem is fully based on Elisabeth Barretts' sophisticated rhythm and rhyme of "Lady's Geraldine Courtship" poem. The rhyme scheme is ABCBBB. The heavy use of alliteration, "doubting dreamy dreams..." plays huge role in the musicality of this beautiful narrative poem of 18 stanzas in which every B line rhymes with the obsessive "nevermore".
The extended metaphor used in this song is related to the cultural rift between humans and mermaids which can be compared to our society today. The humans and mermaids have completely different lifestyles. This compares to people in this world that are completely different, like Christians in America and Buddhists in China. Ariel exemplifies her personal experience with the cultural rift in her song where she confesses her desires.