Use the following to answer questions :
Refer to the figure below. 
-Not counting the root,how many nodes are present?
Definitions:
Commercial Data
Information related to business and commerce, including sales figures, market research, customer profiles, and economic trends.
Government Data
Information collected, maintained, or used by or for the government, which can be used for analysis, making informed decisions, or informing the public.
Periodical Data
Data collected at regular intervals over time, often used to track changes and trends in certain fields or industries.
Potential Competitors
Companies not currently in the market but have the capability to enter and become a competitor due to similar resources or capabilities.
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