Writing: Creating Effective Sentences: Media Skills: Social Networking. If you are interested in business, chances are youve had an idea or two for starting a company. If you havent yet, go ahead and dream up an idea now. Make it something you are passionate about, something you could really throw yourself into. Now write a four sentence summary that could appear on the Info tab on a Facebook profile. Make sure the first sentence is a solid topic sentence, and make sure the next three sentences offer relevant evidence and examples. Feel free to make up any details you need.