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Sentence analysis
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Sentence
Span Details
海外旅行
overseas trip; travel abroadnoun
中
medium; average; middle; in; within; among; during; while; throughout; currently doing; in the process of; under; middle way; moderation; second volume (of three); junior high school; middle school; Chinanoun, suffix
は
topic markergrammar
ブイピーエヌ
virtual private network; VPN-> ＶＰＮnoun
が
subject markergrammar
必須
indispensable; essential; required; compulsoryno-adjective, noun
だ。
plain copulagrammar