Complex sentence: Awareness ribbons are short pieces of ribbon folded into a loop, or representations of such, which are used in the United States and Canada as a way for the wearer to make a subtle statement of support for a cause or issue.
Split into simpler sentences: Awareness ribbons are short pieces of ribbon folded into a loop, or representations thereof. They are used in the United States and Canada as a way for the wearer to make a subtle statement of support for a cause or issue.