AnalyzerSentence analysis7SpansSentence第一次石油危機は1973年に起こった。1000 character limitAnalyzeSentence第だい一いち次じ石せき油ゆ危き機きは1973年ねんに起おこった。Span Details第だい一いち次じ石せき油ゆ危き機きfirst oil crisisnounはtopic markergrammar1973-noun年ねんyear; counter for years; counter for grades; apprenticeship period (usu. ten years)noun, counterにdirection, time, indirect object, or target markergrammar起おこっhappen; occur; arise-> 起こるgodan verbた。past tense or completed actiongrammar