AnalyzerSentence analysis3SpansSentence確かな答え1000 character limitAnalyzeSentence確たしかな答こたえSpan Details確たしかsure; certain; definite; reliable; trustworthy; accurate; if I remember correctly; if I'm not mistakenna-adjective, adverbなadnominal form of the copula after a na-adjectivegrammar答こたえanswer; reply; response; solution; resultnoun