AnalyzerSentence analysis4SpansSentence大変な事故でした。1000 character limitAnalyzeSentence大たい変へんな事じ故こでした。Span Details大たい変へんvery; greatly; awfully; serious; grave; immense; terrible; difficult; hard; tough; major incident; disasteradverb, na-adjective, nounなadnominal form of the copula after a na-adjectivegrammar事じ故こaccident; incident; trouble; circumstances; reasonsnounでした。polite past copulagrammar