掘立 ほったて はしら建物 たてものじゃないです
hottatewa shira tatemonojanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 掘立柱建物

1. It's not a pillar-and-post building.; It's not a simple/rudimentary structure.

Negative
Polite
Casual Register
Architecture