Assertion: lung cancer's tumor | /r/HasProperty | extensive
Facets:
value: for surgery
type: PURPOSE
Source sentences:
text: In addition, some tumors that are initially too extensive for surgery may decrease after chemotherapy or radiation therapy to a point at which surgery is possible.
text: In addition, some tumors that are initially too extensive for surgery may decrease after chemotherapy or radiation therapy to a point at which surgery is possible.