YOU SAID:
cucumbers are the demonstration that evil exits
INTO JAPANESE
きゅうりは悪が出るというデモンストレーションです
BACK INTO ENGLISH
Cucumber is a demonstration of evil
INTO JAPANESE
キュウリは悪のデモンストレーションです
BACK INTO ENGLISH
Cucumber is an evil demonstration
INTO JAPANESE
キュウリは邪悪なデモンストレーションです
BACK INTO ENGLISH
Cucumber is an evil demonstration
That didn't even make that much sense in English.