Complex sentence: Wang reported that the local produce of Ban Zu were hornbill casques, lakawood of medium quality, and cotton, and they traded in silk cloths, iron bars, local cotton prints, red gold, porcelain, and iron utensils.
Split into simpler sentences: Wang reported that the local produce of Ban Zu were hornbill casques, lakawood of medium quality, and cotton. They traded in silk cloths, iron bars, local cotton prints, red gold, porcelain, and iron utensils.