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A person that has benefited (in this Chapter referred to as "beneficiary" below) from the property or labor of another person without legal cause and has thereby caused a loss to another person bears the duty to return that benefit, to the extent the benefit exists.
法律上の原因なく他人の財産又は労務によって利益を受け、そのために他人に損失を及ぼした者（以下この章において「受益者」という。）は、その利益の存する限度において、これを返還する義務を負う。
This names a provision as it read when this amending Act was made. It may have been amended since, so today's text can say something else. That is why it is not a link.This names a law that is not in this collection, so there is nothing here to open.We could not tell which provision this names, so it is not a link.