Question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Humboldt County Courthouse (Iowa) -  The Humboldt County Courthouse is a courthouse in Dakota City Iowa United States the county seat of Humboldt County which dates from 1939. It was listed on the National Register of Historic Places in 2003 as a part of the PWA-Era County Courthouses of IA Multiple Properties Submission. The courthouse is the second building the county has used for court functions and county administration.
Answer: Building

Question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. O-Jay -  Olaf Jeglitza (born 15 February 1965) also known by his stage name O-Jay is a German rapper songwriter and music producer. He is best known as the lead rapper for the Eurodance group Real McCoy.
Answer: Artist

Question: Pick one category for the following text. The options are - company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work. Qinghai Huading Industrial Company Limited -  Qinghai Huading Industrial Co. Ltd. (QHHD) (SSE: 600243) (simplified Chinese: 青海华鼎实业股份有限公司; traditional Chinese: 青海華鼎實業股份有限公司; often abbreviated as 青海华鼎) is a holding company established in 1998 and listed on the Shanghai Stock Exchange in 2000. As of 17 February 2013 the company has a market capitalization of 1.395 billion CNY and employs over 4000 staffs.
Answer:
Company