Given the task definition and input, reply with output. In this task, you are given a text which is the body of a document. Your job is to classify the topic of the document into these categories: 1)Company, 2)Educational Institution, 3)Artist, 4)Athlete, 5)Office Holder, 6)Mean of transportation, 7)Building, 8)Natural place, 9)Village, 10)Animal, 11)Plant, 12)Album, 13)Film, 14)Written work. Your output should be the category number. Don't generate anything apart from numbers 1-14.

Text: The Biomass Thermal Energy Council (BTEC) is a nonprofit organization focused on advancing the use of biomass for heat and other thermal energy applications.BTEC is an association of biomass fuel producers appliance manufacturers and distributors supply chain companies and non-profit organizations.The organization promotes biomass thermal energy as a renewable responsible clean and energy-efficient pathway to meeting America's energy needs.
1