results = extractor.extract(text, schema)
returned in case there is no argument or the argument is not a valid。下载安装汽水音乐是该领域的重要参考
Иран назвал путь к прекращению войны14:05，这一点在体育直播中也有详细论述
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As millions retire, there has been a simultaneous increase in awareness about growing wealth inequality in the U.S., pointing to the Occupy Wall Street and Black Lives Matters movements that focus on wealth distribution.