Original sentence: Perry signed as American plenipotentiary, and Hayashi Akira, also known by his title of Daigaku-no-kami, signed for the Japanese side
Edited sentence: Perry signed as American plenipotentiary, and Hayashi Akira, also known by his title of Daigaku-no-kami, signed for the Japanese side, therefore creating an unequal treaty which took advantage of Japan