うりのきじゃないです
瓜の木じゃないです
urino kijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of うりのき

1. It's not a melon tree.; I'm not a melon tree. (Figurative: I'm not that naive/simple.)

Negative
Polite
Casual Register
Usually Written in Kana