As some of you may know, who really study all the things that have come out, that the planet at Zeta Reticuli was referred to by aliens as both Serpo and Sieu, I wonder if what we heard was a difference in accents or perhaps province dialects in the Eben langauge?
For instance, Erde and Earth are one in the same, both correct, one German said, and one English said.
In America, we have dialects that are so different from each other, like Boston (Southy), Bronx, Georgia, French Arcadia Louisiannan, etc, etc.
Just a thought.