Assertion: swine flu | /r/HasProperty | one of the viruses
Facets:
Source sentences:
text: Swine flu is one of the viruses included in the vaccine.
text: Swine influenza, sometimes referred to as swine flu, is a virus that can circulate in the pig population and does not affect pork products.
text: Swine flu is one of the viruses which are contained in the vaccine.