Assertion: smallpox | /r/CapableOf | spread among people
Facets:
value: through air in the ventilation system
type: MANNER
value: very rarely
type: DEGREE
value: in small, enclosed spaces
type: LOCATION
value: usually
type: TEMPORAL
Source sentences:
text: Very rarely, smallpox has spread among people in small, enclosed spaces, probably through air in the ventilation system.
text: Smallpox usually spreads to people who have close personal contact with an infected person.
text: Very rarely, smallpox has spread among people in small, enclosed spaces, probably through air in the ventilation system.