A Venn diagram is a tool for visually demonstrating the relationships between different sets of things. Using these diagrams, we can quickly see what aspects of the things we're comparing are common between the sets we're comparing, as well which aspects are not common.
With that in mind, here is our Venn diagram showing the relationship between "Green Energy" companies, and "Energy Companies That Don't Need Constant Government Subsidies To Stay Afloat":
We note that there is a small area where the groups overlap, but otherwise, the two groups have little in common....
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