Analyzer
Sentence analysis
9Spans
Sentence
Span Details
彼
he; him; boyfriendpronoun
の
possession, attribution, nominalizer, or nominal linkergrammar
証言
testimony; verbal evidencenoun, suru verb
に
direction, time, indirect object, or target markergrammar
は
topic markergrammar
裏付け
supporting evidence; backing; proofnoun
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar