grammar
non seulement ... mais aussi ...
This correlative structure links two parallel ideas and adds emphasis: it means “not only ... but also ...”. It is useful in both spoken and written French when you want to present an additional benefit or a second, equally important point. Example: « Ce système est non seulement rapide, mais aussi très fiable. » / “This system is not only fast, but also very reliable.”}]}}##end code block? No wait cannot include markdown. Need pure JSON only. Ensure no extra text. remove code block markers. Let's craft final raw JSON. Need valid JSON string. Let's ensure apostrophes okay inside JSON strings with double quotes. Need escape quotes around example in language note. Fine. Let's provide pure JSON
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