Assertion: smallpox's virus | /r/HasProperty | deadly
Facets:
Source sentences:
text: Smallpox is an extremely contagious and deadly virus for which there is no known cure.
text: The virus was so prevalent and lethal that in some societies, parents didn't name their children until they had survived a bout with the virus.
text: Smallpox is an extremely contagious disease, which is caused by the deadly virus called Variola.