It seems to me that the 1 and 2 stanza rhyme. Then with the 4 stanza it rhymes within itself. Then the 3rd and 6th stanza rhymes. Lastly the 4th and 5th stanza rhymes. I couldn't figure out how to say it so I just described it.
this is Because it explains humanity, like the story could be telling us that their was a great loss of life at that time, but finally it came to an end.
