"The Unsullied is wise."

[okopquadrat]

Why is "sylvie" the correct translation? There isn't an accusative, is it?

[xPsGoDWh]

"Sylvie" is an adjective that refers to the subject, which is in the nominative, so no, there is no accusative. However, there are a couple of adjectives that end in -ie for the solar/lunar nouns in the nominative. "Dovaogēdy" is a lunar noun.

[tebkanlo]

Pretty sure any object, that normally would be accusative, changes to nominative case with the verb "to be". As in "Vala syyz issa" or "Vala kepa issa"

[tebkanlo]

A language needs a fix: https://forum.duolingo.com/comment/29385663