AnalyzerSentence analysis4SpansSentence問題が山積みだ。1000 character limitAnalyzeSentence問もん題だいが山やま積づみだ。Span Details問もん題だいquestion; problem (on a test); problem; issue; matter; doubt; public discussion; controversy; trouble; difficulty; inconveniencenounがsubject markergrammar山やま積づみhuge mound; heap; pilenoun, suru verbだ。plain copulagrammar