"Mark Employee of a PRIVATE NOT-FOR-PROFIT ... organization if the person worked for a cooperative, credit union, mutual insurance company, or similar organization. Employees of foreign governments, the United Nations, and other international organizations should mark PRIVATE NOT-FOR-PROFIT ... organization. For persons who worked at a public school, college or university, mark the appropriate government category; for example, mark State GOVERNMENT employee for a state university, or mark Local GOVERNMENT employee for a county-run community college or a city-run public school."