Some of these are just static strings, including the Korean string "국가유공자 장례는 보훈상조" ("Patriots' funeral services are provided by Bohun Sangjo.", Via Kagi) and a number of double-escapes like \\[, along with my personal favourite email validator @. With the substring matching semantics outside of pattern= this would actually be pretty decent email validation, but for patterns this would match only one string: a single @.
Инцидент произошел в районе Банг-Ламун в Паттайе вечером 26 февраля. Уточняется, что банда из трех мужчин проникла в двухэтажный таунхаус 32-летнего британца Уэсли Сирил Рассела, который работал в Таиланде шеф-поваром и жил вместе с тайкой.
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What is screening?
Not every modern human has the same set of Neanderthal DNA, however; different people will, by chance, have inherited different fragments. But there are also some areas, termed "Neanderthal deserts," where none of the Neanderthal DNA seems to have persisted. Notably, the largest Neanderthal desert is the entire X chromosome, raising questions about whether this reflects the evolutionary fitness of genes there or mating preferences.