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Sentence analysis
6Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
反応
reaction; response; physical response; physiological reaction; chemical reactionnoun, suru verb
は
topic markergrammar
自然
nature; the natural world; natural; spontaneous; automatic; naturally; spontaneously; automaticallynoun, na-adjective, adverb
に
adverbial form after a na-adjectivegrammar
起こる。
happen; occur; arisegodan verb