AnalyzerSentence analysis4SpansSentence瞳孔が収斂する。1000 character limitAnalyzeSentence瞳どう孔こうが収しゅう斂れんする。Span Details瞳どう孔こうpupil (of the eye)nounがsubject markergrammar収しゅう斂れんastringency; constriction; contraction; collecting; gathering; summarizing; convergencenoun, suru verbする。light/support verb with a noun or noun-like phrasegrammar