Word 2016, 2013 & 2010 have a feature that can randomly generate paragraph with sentences when using the rand command. This auto population of paragraph can be used when you want play around in Word and try out different option without spending time in typing the content in the document.
When you want to randomly generate content, type =rand(2,3) and press Enter.
2 refers to the number paragraphs and 3 refers to number of sentences that needs to auto generated. You can change these numbers depending upon your requirements.