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Definition lists
This list type is borrowed from HTML. A definition describes an item, and therefore consists of two parts: the item and the description.
As an item can be more than just one word, we need more than a simple prefix here: we need to mark where the description part starts. A colon seems appropriate - that's what one would usually use in a written text:
Computer: a system to automate stupid jobs.
In PerlPoint, it's the same, and to make things consistent the colon is used to start a definition point as well:
:Computer: a system to atomate stupid jobs.
Isn't that easy?
As with the other list types, the point can be wrapped in any way. Additionally, there can be any number of whitespaces between the item and the explanation part. This allows to structure the source for readability:
:Writer: a creative person producing books. :Illustrator: an artist visualizing stories.