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Troff allows you to make paragraphs that have a label in the left margin by including only one command, .IP. To use .IP, include it in your file as follows:
.IP label
Replace label with the label that is to go in the margin. For example, if you wanted to create a paragraph and give it a label called "Weather," your file would look like this:
.IP Weather This is a nice day. We could have been outside having a fun time. But probably by the time we get outside it will be raining.
This file produces the following output:
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