Can you have one of in a dtd?

[Lionel]

Hi,

I'm wondering if in a dtd there is a way to say that an element say Z
contains one of either elements A, B, and C?

Thanks,

Lionel.

 

[Lionel]

Hi,

I'm wondering if in a dtd there is a way to say that an element say Z
contains one of either elements A, B, and C?

My bad, I should have checked google first, I didn't think I was going
to be able to turn anything up but an enumerated type is what I was after.

Lionel.