Jealousy is often felt when someone undeserving wins something and in this case, the friend of the person who wrote the sentence did not have to work hard for the prize they won.
Consider the statement "I was so envious of my friend when she won from a lottery ticket she bought for a buck. ". Is the statement "I felt no sense of jealousy when without doing any hardwork my friend won from the lottery ticket that she bought for only a dollar." false? Yes/no/unknown