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Categories are the components of variables, so if a variable measures age then the categories are the age groups used, such as '10 to 14'.
Variables, defining what data was gathered for:
| Entity ID | Entity Name |
|---|---|
| V_AGCEN_FARMSIZE_A_1920 | Agricultural Census Farm Size Categories for 1920 |
Categories, defining the values available for each variable:
| Entity ID | Entity Name |
|---|---|
| C_AGCEN_FARMSIZE_A_4WAY_3 | 50 to 300 acres |
Category "150 to 300 acres" contains no lower-level entities.