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Sentence
Span Details
希土類元素
rare-earth element; rare-earth metalnoun
は
topic markergrammar
ハイテク
high-tech; cutting-edge technologyna-adjective, noun
製品
product; manufactured goods; finished goodsnoun
に
direction, time, indirect object, or target markergrammar
不可欠
indispensable; essential; vitalna-adjective, noun
だ。
plain copulagrammar