Two properties = One value

In my case, Brand and Manufacturer from a Product are the same value.
Is valid to do that?

<div itemprop="brand manufacturer">Adobe</div>


Or I must do that:

<div itemprop="brand">Adobe</div>
<div itemprop="manufacturer">Adobe</div>


Thanks!

Received on Sunday, 1 April 2012 12:23:31 UTC