Create your own collection of information and give it different properties.
Here is an example of an animal collection.
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Make some properties open to attract attention, and some hidden (paid), access to which can be opened by making a certain amount of money.
For example, you can make open simple and all available animal properties (eg longevity, weight, sleep time, etc.) and for example a link to deciphering the DNA of each species to make a commercial
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