AnalyzerSentence analysis4SpansSentence考え事をしながら1000 character limitAnalyzeSentence考かんがえ事ごとをしながらSpan Details考かんがえ事ごとsomething on one's mind; concern; worry; deep in thought; absorbed in thoughtnounをobject markergrammarしlight/support verb with a noun or noun-like phrase-> するgrammarながらwhile doinggrammar
