Another thing to consider is the part of speech. For example, "lazy" is an adjective, so synonyms like indolent would work. But if the word is a noun like "dog", the variants could be canine.

What about words with fewer synonyms? Let's say "the" – it's an article, so there are no real synonyms, but maybe it can stay as is. Wait, the user didn't specify to replace articles or prepositions. Hmm. The instruction is every word with three variants, but proper nouns are skipped. So perhaps articles and prepositions need to be included unless they are proper. However, articles like "the" and prepositions like "over" are part of the words to be replaced. So I need to come up with alternatives for them. For "the", maybe such? But "the" is a definite article, so using indefinite articles might not make sense. Maybe alternatives could be an depending on context. Need to be careful here.

- "John" is a proper noun, skip. - "went" → departed - "to" → toward - "Paris" is a proper noun, skip. - "and" → as well as - "bought" → acquired - "a" → that - "new" → fresh - "book" → publication - "for" → to - "school" → school

This example shows how each non-proper noun is replaced with three variants. Now, applying this systematically across the entire text should meet the user's requirements. I'll make sure to only output the transformed text without any additional explanations, as specified.

Resulting in: "John departed toward Paris as well as acquired an innovative volume regarding institution."