AnalyzerSentence analysis5SpansSentence遺伝子変異が原因だ。1000 character limitAnalyzeSentence遺い伝でん子し変へん異いが原げん因いんだ。Span Details遺い伝でん子しgenenoun変へん異いunusual occurrence; anomaly; variation; mutationnoun, suru verbがsubject markergrammar原げん因いんcause; origin; sourcenoun, suru verbだ。plain copulagrammar