Looking closer, it's under a cc-by-nc-sa license, so can't be used by commercial forks (and therefore isn't Free by the FSF or Debian definitions). But it's ava

Looking closer, it's under a cc-by-nc-sa license, so can't be used by commercial forks (and therefore isn't Free by the FSF or Debian definitions). But it's available for research purposes, or for use by noncommercial forks.