At its core eno lets us write down values, the simplest form being:

Current Temperature: Quite pleasant

With this we specify a pair of a key and a value, the key being "Current temperature" and the value being "Quite pleasant".

Some other examples:

Last Name: Schneider
Profession: Freelance graphics artist

No value

If we don't want to specify a value, we just omit it. (the value then is null)

More information:

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