Random triples
| Subject | Object |
|---|---|
| gptkb:Bureau_of_the_Census | voluntary for surveys |
| gptkb:Bureau_of_the_Census | mandatory for households |
| gptkb:Establishment_of_the_U._S._Census | mandatory for households |
| gptkb:Census_Act_1851 | mandatory for households |
| Subject | Object |
|---|---|
| gptkb:Bureau_of_the_Census | voluntary for surveys |
| gptkb:Bureau_of_the_Census | mandatory for households |
| gptkb:Establishment_of_the_U._S._Census | mandatory for households |
| gptkb:Census_Act_1851 | mandatory for households |