<http://schema.org/keywords>
"Abstract, Axle, Close Up, Fine Art, Macro, Toy, YoYo, Close-Up, Play, Textures, Toys, Yo-Yo"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/24702681/yoyo-by-minoltad>