AnalyzerSentence analysis3SpansSentence発展している1000 character limitAnalyzeSentence発はっ展てんしているSpan Details発はっ展てんdevelopment; growth; expansion; development (of a situation); progression; unfolding; sexual activity (esp. male homosexual); playing aroundnoun, suru verbしlight/support verb with a noun or noun-like phrase-> するgrammarているongoing or resultant stategrammar