What Birches and and ldquoMending Wall and and and ldquoOut Out and mdash and by Robert Frost are examples of all of the following except?

"Birches," "Mending Wall," and "Out, Out—" by Robert Frost are examples of poetic works that often explore themes of nature, human relationships, and the passage of time. However, they are not examples of modernist poetry, as Frost's style is more rooted in traditional forms and rhyme schemes, rather than the experimental techniques characteristic of modernism. Instead, his works often reflect a deep connection to rural life and the complexities of human emotions.