Assertion: malignant brain tumor | /r/HasProperty | brain cancer
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Source sentences:
text: An estimated 18,020 people will die from malignant brain tumors (brain cancer) in 2020
text: Metastatic brain tumors are brain tumors that originate from cancers elsewhere in the body, such as the lung, breast, colon, kidney, or skin (melanoma), and spread to the brain, usually migrating through the bloodstream.