Schema.org/CreativeWork: why "about" and "mentions" are Thing, but "keywords" isn't?

• From: Chilly_Bang <chilly_bang@yahoo.de>
• Date: Wed, 12 Jun 2013 15:40:12 +0200
• To: public-vocabs@w3.org
• Message-ID: <CAG40=vqvuNNJtise8Ovg9cGBWXv3oHKVr+utG4cT4oimiNg3tQ@mail.gmail.com>

Hello to all!

Why are properties "about" and "mentions" allowed to be a Thing, but
"keywords" only a text?

greets
evgeniy

Received on Wednesday, 12 June 2013 14:10:39 UTC