この物質は人体に無害です

N5 この kono this N3 物質 busshitsu material, substance N1 人体 jintai human body N3 無 mu nothing, absence, nonexistence N3 害 gai harm, damage, injury

N4 物 butsu, motsu / mono, mono- thing, object, matter N4 質 shitsu, shichi, chi / tachi, tada.su, moto, warifu substance, quality, matter N5 人 jin, nin / hito, -ri, -to person, être humain, personne N4 体 tai, tei / karada, katachi body, substance, object N3 無 mu, bu / na.i nothingness, none, ain't N3 害 gai harm, injury, tort

N5 〜です desu Used at the end of a sentence, polite affirmative form, means to be depending on context N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information