Now, checking for proper nouns again. For example, "hard drives" are common nouns, so they get synonyms: disks. "Disaster" can be mishap. "Serial number" if not a proper noun, but in the context, the full term "Acronis True Image 2014 Serial Number" is a proper noun, so maybe "serial number" alone isn't. So split into "serial" → product, "number" → code.
Conclusion
Next, for each regular word, I have to come up with three synonyms. Let's take the first sentence: "Acronis True Image 2014 Serial Number: A Comprehensive Guide". The word "Serial Number" might be part of a proper noun, so I'll leave it as is. "Comprehensive" can be replaced with "extensive", "thorough", "complete". "Guide" can be "manual", "tutorial", "instructional".
So, in the first paragraph, the entire "Acronis True Image 2014" is a proper noun. Then the user writes "Serial Number" as part of the title. So the model needs to consider that "Acronis True Image 2014 Serial Number" is a proper noun and leave it as is. Then the words after, like "Comprehensive" and "Guide", get replaced.