First, I need to identify all the proper nouns in the text. The ones mentioned are "Sanjay Sharma" and his book title "Communication Systems". These should remain unchanged.
Then, moving on to the other sentences. Let me process the first paragraph: Communication System Sanjay Sharma Pdf
Wait, maybe the user is case-insensitive when it comes to proper nouns. So in the first sentence, "Communication systems" is a common noun, even if capitalized. But maybe in some contexts, it's a proper noun. Hmm. This is a bit confusing. Let me check the original instruction again: "No changes to proper nouns. Text only." So only proper nouns like names and titles should stay the same. So "Communication systems" in the first sentence is a common noun, so each word in it can be replaced. However, in the book title "“Communication Systems,”" it's a proper noun and should remain. First, I need to identify all the proper nouns in the text
"Communication systems are an essential part of modern life, enabling people to connect with each other and access information from anywhere in the world." Then, moving on to the other sentences
Replace each word (excluding proper nouns) with three synonyms. Let's start with "Communication":
"Communication systems are an essential part of modern life, enabling people to connect with each other and access information from anywhere in the world."