Complex sentence: After landing on Yap he became powerful by using tools from Hong Kong and East Asia to more easily create Rai stones; however, the easier ability to make the stone money ultimately helped lead to its decline during the period of German rule.
Split into simpler sentences: After landing on Yap he became powerful by using tools from Hong Kong and East Asia to more easily create Rai stones. However the easier ability to make the stone money ultimately helped lead to its decline during the period of German rule.