こちらは田中さんです。

N5 こちら kochira this way, this side, this person, polite N5 田中さん Tanaka-san Mr. Tanaka

N4 田 den / ta rice field, rice paddy, rizière N5 中 chuu / naka, uchi, ata.ru in, inside, middle

N5 〜の no Indicates possession, relation between nouns, nominal explanation, or turns a verb into a noun phrase N4 〜ので node Indicates cause or reason in a softer way than kara, connects two clauses, often used in polite explanations N5 〜です desu Used at the end of a sentence, polite affirmative form, means to be depending on context N5 〜で de Indicates where an action happens, means used, tool, cause, or material depending on context N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information