Random triples
| Subject | Object |
|---|---|
| gptkb:The_United_States_Post_Office | international mail |
| gptkb:The_United_States_Post_Office | first-class mail |
| gptkb:The_United_States_Post_Office | express mail |
| gptkb:The_United_States_Post_Office | media mail |
| gptkb:The_United_States_Post_Office | priority mail |