Instructions: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
Input: From 1921 to 1944 , Tuva constituted a sovereign , independent nation under the name of Tannu Tuva , officially , the Tuvan People 's Republic , or the People 's Republic of Tannu Tuva .
Output:
From 1921 to 1944 , Tuva was a separate country called Tannu-Tuva .