AnalyzerSentence analysis7SpansSentence変数名は有効な識別子でなければならない。1000 character limitAnalyzeSentence変へん数すう名めいは有ゆう効こうな識しき別べつ子しでなければならない。Span Details変へん数すう名めいvariable namenounはtopic markergrammar有ゆう効こうvalid; effective; in effect; yuko (judo)na-adjective, nounなadnominal form of the copula after a na-adjectivegrammar識しき別べつ子しidentifiernounでcontinuative form of the copulagrammarなければならない。must; have to; need toexpressionAlso Foundでなければならないでなければならないmust be; have to be; ought to beoptional