AnalyzerSentence analysis4SpansSentenceテトリス系のゲーム1000 character limitAnalyzeSentenceテトリス系けいのゲームSpan DetailsテトリスTetris (video game)noun系けいsystem; lineage; group; corollary; geological system; taxonomic seriesnoun, noun suffixのpossession, attribution, nominalizer, or nominal linkergrammarゲームgamenoun