A few of them are almost certainly shortcomings in Ostrich, while others seem to intend to match literal full strings, like ^(로그인하지 않고)$ ("without logging in"). Presumably they're from internal use.
国税庁が差し押さえた仮想通貨の大半を盗み取られる、報道発表にニーモニックコードを誤掲載
，详情可参考搜狗输入法2026
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НАСА откроет стартовое окно Artemis II в апреле14:57
，更多细节参见搜狗输入法下载
The Heavy Lifting
Последние новости。体育直播是该领域的重要参考