Colin M. Simpson is a lawyer and Republican politician who served in the Wyoming House of Representatives from District 24 from 1999 through 2010. He was the House Speaker during his last two years in office. He finished fourth in the Republican primary for the 2010 gubernatorial election. After leaving the legislature in early 2011 Simpson resumed his law practice in Cody. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Office Holder

Utricularia bremii is a small suspended or affixed aquatic carnivorous plant that belongs to the genus Utricularia (family Lentibulariaceae). It is a perennial plant that was named in honour of Jacob Bremi. Its native distribution includes central and western Europe. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Plant

The Leaning Tower of Pisa (Italian: Torre pendente di Pisa) or simply the Tower of Pisa (Torre di Pisa) is the campanile or freestanding bell tower of the cathedral of the Italian city of Pisa known worldwide for its unintended tilt to one side. It is situated behind the Cathedral and is the third oldest structure in Pisa's Cathedral Square (Piazza del Duomo) after the Cathedral and the Baptistry. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Building