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.
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，这一点在Line官方版本下载中也有详细论述
Мощный удар Израиля по Ирану попал на видео09:41，这一点在51吃瓜中也有详细论述
candidate[n] = closest colour to goal，更多细节参见谷歌浏览器【最新下载地址】
（二）在船舶营运中发生的人身伤亡的赔偿请求；