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Sentence analysis
7Spans
Sentence
Span Details
教室
classroom; lecture room; department (university); class; lesson; course; school (for a discipline); teaching establishmentnoun
に
direction, time, indirect object, or target markergrammar
学生
student (especially university)noun
が
subject markergrammar
三人
three peoplenoun
い
be; exist; stay; be ...-ing; have ...-ed; be ...-ed-> 居るichidan verb, auxiliary
ます。
polite non-pastgrammar