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spec: The policemen offered me the only chair in their squalid little room . " Until 2002 , Lerch had served for six years as member and then chair of AAAS 's Committee on Scientific Freedom and Responsibility , which advises AAAS 's human rights and scientific responsibility and ethics programs . A short while later ( usually not more than five minutes ) , Lansdale returns to the chair at his writing PC and gets to work . `` 8 U.S.C . However , whether or not an appointment is requested , the HMO will be responsible for the following : ... The tutorial chair , Mr. B. Shriver , is currently reviewing 18 proposals . However , the elevators were very slow ... The possible items might include : chairs , tables , doors , exit signs , lamps , shoes , horses , cats , plants , tractors , trucks , cars , or family members . But we have insight into why it is that a given configuration of parts , surrounded by a certain kind of system , is necessarily a pump .