AnalyzerSentence analysis4SpansSentence封筒を開封する。1000 character limitAnalyzeSentence封ふう筒とうを開かい封ふうする。Span Details封ふう筒とうenvelopenounをobject markergrammar開かい封ふうopening; breaking the seal; unboxing; opening a product package; unsealed mailnoun, suru verbする。light/support verb with a noun or noun-like phrasegrammar
