"Pa liw yw"

Translation: Which colour is

[SeanDamienF]

What colour is? This is not a good sentence!

[mizinamo]

And there is not a full stop at the end -- it doesn't even pretend to be a sentence.

It's just a useful sentence component.

[ajHenrot]

I also find it weird. I had answered "which colour is it" because it did not feel right without the "it".