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:
stenungsund is an urban area in the county of västra götaland in sweden.
answer:
stenungsund


question:
leaf storm is a short story written by nobel prize-winning author gabriel garcía márquez.
answer:
leaf storm


question:
ammonium carbonate, also known as baker's ammonia or sal volatile, is a chemical compound.
answer:

ammonium carbonate