AnalyzerSentence analysis2SpansSentence背中合わせの1000 character limitAnalyzeSentence背せ中なか合あわせのSpan Details背せ中なか合あわせback-to-back; facing opposite directions; two sides of the same coin; inextricably linked; on bad terms; at oddsnounのpossession, attribution, nominalizer, or nominal linkergrammar