Since the hierarchical relationship among government officials was clearly defined in the ritsuryo system, the upper grade officials to whom lower grade officials had to submit ge were fixed accordingly, therefore, it was necessary to write the name of the reporter, lower grade official, while that of a receiver, higher grade official, was not written (Shoku [ritsuryo system]/Ryo [ritsuryo system]/Tsukasa/Gun->Hassho/Kokushi->Dajokan).
律令制においては官司の上下関係は明確であるため、解の提出先である上級官司は自ずから定まっており、差出所である下級官司の名称は記載されていても、宛所である上級官司は記載しないことになっていた（職(律令制)・寮(律令制)・司・郡→八省・国司→太政官）。