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:
"hail to the chief" is the official presidential anthem of the united states.
answer:
hail to the chief


question:
joe the plumber, nickname of "samuel joseph "joe" wurzelbacher", (born december 3, 1973 in toledo, ohio) is an american commentator, motivational speaker and political activist.
answer:
joe the plumber


question:
the johnson county war, also known as the war on powder river and the wyoming range war, was a conflict over farmland that took place in johnson county, wyoming between 1889 and 1893.
answer:

johnson county war