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Sentence
Span Details
化学結合
chemical bondnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
種類
kind; type; variety; category; counter for kinds, species, etc.noun, counter
に
direction, time, indirect object, or target markergrammar
ついて
about; concerning; regarding-> 就いてexpression
学ん
learn; study; take lessons in-> 学ぶgodan verb
だ。
past tense or completed action-> たgrammar