Administrative requisition refers to an administrative legal system in which administrative agencies forcibly obtain the right to use or own the property of citizens and legal persons and provide them with reasonable compensation for the public interest and public purposes. According to the above definitions, Which of the following are not administrative requisitions:. ["An economic development park built by the town two years ago used Yang Jun's contracted land, and Yang Jun received reasonable compensation after many efforts.", "At the time of solving the case, a public security organ used Wang's motorcycle because of an emergency and later paid Wang some expenses.", 'A national key engineering project needs to occupy the land of farmers in a certain city. The local government has given farmers various compensation fees and resettlement fees for the requisitioned land and resettled the surplus labor.', 'A flood occurred in a certain place. In order to fight the flood, the government mobilized sand from several construction companies to give them some compensation.']