Assertion: anthrax's spore | /r/HasProperty | mailed in letter
Facets:
Source sentences:
text: In the weeks following the terrorist attacks of September 11, 2001, 22 confirmed or suspected cases of anthrax infection were disseminated via the US postal system; the spores mailed in these letters were ultimately traced to a US army medical research institute.
text: In the weeks following the terrorist attacks of September 11, 2001, 22 confirmed or suspected cases of anthrax infection were disseminated via the US postal system; the spores mailed in these letters were ultimately traced to a US army medical research institute.