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Sentence analysis
7Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
石器
stone tool; stone implementnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
ポイント
point; key point; important part; spot; site; score; percentage point; decimal point; stock index point; switch; points; fishing spot; place where fish gather; ace; projectile point; point at; indicatenoun, suru verb
は
topic markergrammar
非常に
very; extremely; exceedinglyadverb
鋭い。
sharp; pointed; acute; cutting; piercing; keen; astute; perceptivei-adjective