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.

Beginning in 1953 with the formation of the Avsenik Brothers Ensemble , Avsenik produced more than 1,000 songs and enjoyed success both in Slovenia and in other parts of Europe and America , and is viewed as a Slovenian cultural icon .
Since 1953 , Avsenik produced more than 1,000 songs and enjoyed success both in Slovenia and in other parts of Europe and America .

Standardized tests are designed in such a way that the questions , conditions for administering , scoring procedures , and interpretations are consistent and are administered and scored in a predetermined , standard manner .
Standardized tests are designed so that everything about them are standard .

Endothelium refers to cells that line the interior surface of blood vessels and lymphatic vessels , forming an interface between circulating blood or lymph in the lumen and the rest of the vessel wall .

Endothelium is a layer of cells that line the walls of the circulatory system which carries blood around the body .