AnalyzerSentence analysis3SpansSentence偶然発見する1000 character limitAnalyzeSentence偶ぐう然ぜん発はっ見けんするSpan Details偶ぐう然ぜんcoincidence; chance; accident; by chance; unexpectedly; accidentally; contingencynoun, na-adjective, adverb発はっ見けんdiscovery; detection; findingnoun, suru verbするlight/support verb with a noun or noun-like phrasegrammar