AnalyzerSentence analysis5SpansSentence警防活動に従事する。1000 character limitAnalyzeSentence警けい防ぼう活かつ動どうに従じゅう事じする。Span Details警けい防ぼうguard; security; policingnoun活かつ動どうactivity; action; operation; moving picture (obs. abbr.)noun, suru verbにdirection, time, indirect object, or target markergrammar従じゅう事じengage in; be involved in; pursuenoun, suru verbする。light/support verb with a noun or noun-like phrasegrammar