Assertion: brain tumor's type | /r/HasProperty | low-grade astrocytomas
Facets:
Source sentences:
text: There are several types of astrocytoma: Low-grade astrocytomas: These include grade
text: The most common types of pediatric tumors are medulloblastomas, low-grade astrocytomas (pilocytic), ependymomas, craniopharyngiomas and brainstem gliomas.