Assertion: origami | /r/HasProperty | constructed of rectangular paper
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Source sentences:
text: Many traditional origami designs are based on beginning with a square sheet of paper, but new designs include origami constructed of circular paper, rectangular paper, and even multiple pieces of paper joined together, sometimes called modular origami when each sheet of origami paper is folded into an identical form, and multi-piece origami when multiple sheets are used simply to extend the creation without replication.