Analyzer
Sentence analysis
9Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
分野
field; area; domain; branchnoun
に
direction, time, indirect object, or target markergrammar
ついて
about; concerning; regarding-> 就いてexpression
深い
deep; profound; dense; thick; close; intense; strong; latei-adjective
知識
knowledge; informationnoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar