Analyzer
Sentence analysis
5Spans
Sentence
Span Details
スキー
skiing; ski; skisnoun
教室
classroom; lecture room; department (university); class; lesson; course; school (for a discipline); teaching establishmentnoun
に
direction, time, indirect object, or target markergrammar
参加
participation; joining; entrynoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar