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
問題
question; problem (on a test); problem; issue; matter; doubt; public discussion; controversy; trouble; difficulty; inconveniencenoun
は
topic markergrammar
幾何学
geometrynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
知識
knowledge; informationnoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar