Assertion: rubella | /r/CapableOf | become rare
Facets:
value: in the united states
type: LOCATION
value: because of rubella vaccine
type: CAUSE
value: quite
type: DEGREE
value: fortunately
type: MANNER
Source sentences:
text: Rubella has become quite rare in the United States, thanks to a very successful vaccination program.
text: Fortunately, because of rubella vaccine, rubella itself has become rare in the United States.
text: German measles, or rubella, is a disease that has become rare in the United States because of the availability of the vaccine against this infection.