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Sentence analysis
7Spans
Sentence
Span Details
鼠
mouse; rat; dark gray; slate graynoun
小僧
youngster; boy; brat; young Buddhist monk; novice monk; shop boy; errand boy; apprenticenoun
が
subject markergrammar
大名屋敷
daimyo's mansionnoun
に
direction, time, indirect object, or target markergrammar
忍び込ん
sneak in; creep in; steal in-> 忍び込むgodan verb
だ。
past tense or completed action-> たgrammar