kato – /ka’to/ – building or house of two or more stories
This word would not apply to a single story structure. Any and all buildings are called yapo, but kato specifies that the structure is taller than one story.
na te katokai yoka kiha’o tsakahue
1SG of "kato"-red floor ORD-three reside-LOC
I reside on the thrid floor of the red “kato”.