Complex sentence: These Austronesians engaged in trading with China, India, Japan Ryukyu the Middle East, Borneo, and other places, as a result their cultures have also left a mark on Filipino culture.
Split into simpler sentences: These Austronesians engaged in trading with China, India, Japan, the Ryukyu islands, the Middle East, Borneo, and other places. As a result, those cultures have also left a mark on Filipino culture.