What are the four 4 types of data?

Excuse me, could you please elaborate on the four types of data that are commonly discussed in the realm of cryptocurrency and finance? I understand that there are several classifications, but I'm particularly interested in understanding the four key types that are relevant to our industry. Are these perhaps market data, transactional data, blockchain data, and sentiment analysis data? If not, could you provide a clear breakdown of the four types that are most essential for professionals in this field to understand and analyze?