Okay, let me tackle this user's request. They want me to replace each term in the given text with three alternatives using the syn2 format, skipping proper nouns. They also specified to output text only.

Let me test a few examples. The phrase "standard Facebook app" would have "standard" as a target. Replacements could be conventional. "Customizable experience" would be customizable for "customizable," "experience" becomes interface.

Next section: "Benefits of Facebook Pro 2 APK Download. The benefits of downloading Facebook Pro 2 APK are numerous." Skip proper nouns. "Benefits" → "Advantages", "Gains", "Rewards". "Numerous" → "Many", "Plenty", "Countless".

Another thing to check is the formatting. The user wants each alternative in b format. Need to replace each word individually where possible. For phrases, if they can be split, replace each part. For example, "block annoying ads" becomes "stop irksome ads" but each part is replaced.

I need to ensure that each term is replaced with three synonyms. Also, check for any terms that might be part of proper nouns but aren't. The user mentioned skipping proper nouns, so terms like Facebook Pro 2 stay as is. Also, need to make sure that the replacements are appropriate and not overlapping. For example, "Enhanced Security" was already handled in the features section, so in the benefits part, "Improved Security" might have "Better protection", etc.

Also, looking at the example the user provided earlier, they replaced each word in a sentence with three options per word. So, each word should be replaced independently. For example, "Facebook Pro 2 boasts an impressive array of features, including:" would become "Facebook Pro 2 offers an impressive array of capabilities, comprising:"

Another point: the user wants the output in the format a without any additional formatting. So each word in the text will be replaced with three alternatives in that format. For example, "leading" could become top.