They Are Billions Calliope Build [work] Official
"a" → An (though "The" might not fit here)
But "Used" is a verb → Deployed
Another thing to note is that proper nouns like "Calliope" should remain unchanged. The user mentioned "No changes to proper nouns." So in the text, "Calliope" is a proper noun and should not be altered. they are billions calliope build
"Third ring: Walls, Defensive structures"
Same walls, defensive structures already replaced earlier. "a" → An (though "The" might not fit
Wait, the user said "every word with 3 synonyms as spintax w1". So each word in the original text should be replaced by three synonyms in the spintax format. But wait, maybe I'm misunderstanding. Because "every word" might mean every unique word, but perhaps the user wants each instance of a word replaced. But that's not possible unless the entire text is rewritten with synonyms for each word. Alternatively, maybe the user wants each word in the text to have three synonyms listed, but in the context of the spintax, so each word from the original text is transformed into a spintax group. But that's ambiguous. However, given the example in the user's mind, perhaps they want each word in the original text to be replaced with its own set of synonyms, keeping the structure the same but using word3 format.
For "crucial", synonyms could be Critical Wait, the user said "every word with 3
- "step-by-step" → Sequential