Read the following message and then analyze the weaknesses of each sentence. At a local business-supply store, I recently purchased your Negotiator Pro for my computer (1). I bought the CD because I saw your ad for it in Macworld magazine, and it looked as if it might be an effective tool for use in my corporate seminar on negotiation (2). Unfortunately, when I inserted it in my office computer, it wouldn't work (3). I returned it to the store, but because I had already opened it, they refused to exchange it for a CD that would work or give me a refund (4). They told me to contact you and that you might be able to send me a version that would work with my computer (5).