| Sample no. 1 | Sample no. 2 | Sample no. 3 | Sample no. 4 | |
| Plabeled | 19,088 | 26,853 | 31,423 | 29,989 |
| Punlabeled | 8,895 | 12,590 | 21,218 | 22,778 |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.