Complex sentence: There are however also important differences between these two cultures, e.g. in the NBP culture rice, millet and sorghum become more important, and the NBP culture may reflect the first state-level organization in South Asia.
Split into simpler sentences: There are however also important differences between these two cultures, e.g. in the NBP culture rice, millet and sorghum become more important. The NBP culture may reflect the first state-level organization in South Asia.