instruction:
Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.
question:
bobby ryan (born robert shane stevenson; march 17, 1987 in cherry hill, new jersey) is an american professional ice hockey right winger.
answer:
bobby ryan


question:
platinum is a soft, heavy, white metal.
answer:
platinum


question:
the castle of almansa is a castle in almansa, spain.
answer:

castle of almansa