<http://schema.org/keywords>
"dolphin, foca, girafa, giraffe, golfinho, gorila, gorilla, lion, lisboa, lisbon, macaco, marinho, monkey, orangotan, orangotango, pelican, portugal, rhino, rinoceronte, sea, seal, suricata, tiger, tigre, zoo"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/22878965/giraffe-by-nuno-vicente>