Assertion: grade tumor | /r/HasProperty | slow growing masses
Facets:
value: usually
type: DEGREE
Source sentences:
text: Low grade tumors (grade 1 or 2) are usually slow growing masses that are not likely to spread.
text: Brain tumors are graded from 1 to 4, where grade 1 tumors are the slowest growing and least likely to spread and grade 4 tumors are the most aggressive and harmful cancers.