AnalyzerSentence analysis6SpansSentence等差数列は基本的な数列です。1000 character limitAnalyzeSentence等とう差さ数すう列れつは基き本ほん的てきな数すう列れつです。Span Details等とう差さ数すう列れつarithmetic progression; arithmetic sequencenounはtopic markergrammar基き本ほん的てきfundamental; basicna-adjectiveなadnominal form of the copula after a na-adjectivegrammar数すう列れつsequence; progression; several lines; several rowsnounです。be; is; arecopula, auxiliary出洲ですspit of land; sandspit