AnalyzerSentence analysis6SpansSentence彼のアリバイは鉄壁だ。1000 character limitAnalyzeSentence彼かれのアリバイは鉄てっ壁ぺきだ。Span Details彼かれhe; him; boyfriendpronounのpossession, attribution, nominalizer, or nominal linkergrammarアリバイalibi; proof of being elsewherenounはtopic markergrammar鉄てっ壁ぺきiron wall; impregnable fortress; impregnable; invulnerable; unassailablenoun, no-adjectiveだ。plain copulagrammar