It's not ours, it's theirs

[jrhjazznblues]

I would think this would be " No es el suyo, es de ellos".

[aleCcowaN]

No es (nuestro/nuestra/el nuestro/la nuestra), es de (ellos/ellas)

depending on what and who you're talking about

(or is it "whom you're talking about"? :thinking:)