Analyzer
Sentence analysis
7Spans
Sentence
Span Details
彼ら
they; thempronoun
は
topic markergrammar
交代制
shift system; rotation systemnoun
を
object markergrammar
導入
introduction; bringing in; installation; importation; introduction (of a story, lecture, etc.); introductory partnoun, suru verb
し
light/support verb with a noun or noun-like phrase-> するgrammar
ました。
polite pastgrammar