AnalyzerSentence analysis2SpansSentence基幹局1000 character limitAnalyzeSentence基き幹かん局きょくSpan Details基き幹かんcore; mainstay; backbonenoun局きょくbureau; department; office; post office; broadcasting station; channel; exchange; affair; situation; state of things; game (of go, shogi, etc.)noun, noun suffix, counter