Assertion: vaccine | /r/CapableOf | fight cancer
Facets:
Source sentences:
text: The vaccines work to boost the body's natural defenses to fight a cancer.
text: They aim to stimulate your immune system to attack the cancer.
text: Vaccines can be prophylactic (to prevent or ameliorate the effects of a future infection by a natural or "wild" pathogen), or therapeutic (to fight a disease that has already occurred, such as cancer).