In the poem "stopping by wood" what does the word "sleep" symbolize?

Explanation:

In this case, sleep could be symbolic of death, and the fact that the narrator has "miles to go" before he can sleep means that he cannot stop now. He has "promises to keep": things that he must yet still do before his life can be finished.

it the climax in the poem

the sentence that avoid faulty coordination is:

culture, which is well represented in philadelphia, plays a major role including theatre, music, and the visual arts.  

faulty coordination occurs when the writer gives equal importance two different ideas (clauses) which in fact are not equivalent. in order to correct a misplaced clause or idea, the writer can place less important or emphatic ideas in a relative clause as in the previous sentence.