AnalyzerSentence analysis3SpansSentence急激な反動1000 character limitAnalyzeSentence急きゅう激げきな反はん動どうSpan Details急きゅう激げきsudden; abrupt; rapid; drastic; sharpna-adjectiveなadnominal form of the copula after a na-adjectivegrammar反はん動どうreaction; recoil; backlashnoun