The first one has alliteration in the beginning, but not in the end. The 2nd sentence is barely alliteration, the 3rd one has no alliteration, and teh 4th sentence repeates the -eed sound.
Elpenor was one of Odysseus' comrades, and happened to be the youngest. This was labelled as part of the road of trials for that fact he had to mourn about this, thinking this was his fault. He had to overcome this.