Answer:
the River of Ocean in the land of the Cimmerians
Explanation:
There he pours libations and performs sacrifices as Circe earlier instructs him to do to attract the souls of the dead. The first to appear is that of Elpenor, the crewman who broke his neck falling from Circe's roof.
The singular noun is 'grass'. Eyes are plural, and the words see and green are not nouns. I hope I helped! :)
Both use flashback to provide crucial background to the characters' situation