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Subject
- Boundaries4
- Administrative and political divisions3
- transportation3
- Economy2
- Education2
- Emergency management2
- Employment2
- Health2
- Housing2
- Population2
- Risk assessment2
- Society2
- boundaries2
- inlandWaters2
- society2
- Boundary disputes1
- Climatology, Meteorology and Atmosphere1
- Geopolitics1
- Names, Geographical1
- Terrestrial heat flow1