Answer:
The three dimensions of relationship-level meanings are liking or disliking, responsiveness, and power control. Encoding your thoughts and feeling into a intended message.
What is the question, I don’t see the picture?
Answer: Both use everyday language.
Both Robert Frost's "Mending Wall" and Carl Sandburg's "Frost" use everyday language. This is their main similarity. This type of vocabulary allows them to convey their ideas in a way that is accessible to everyone. It is also a characteristic that sets them apart from other more traditional poets.