Assertion: tumor | /r/HasProperty | harder to treat
Facets:
Source sentences:
text: In general, tumors in which the anaplasia is spread throughout the tumor (known as diffuse anaplasia) are harder to treat than tumors in which the anaplasia is limited just to certain parts of the tumor (known as focal anaplasia).
text: About 2 out of 3 children with these tumors are treated successfully with surgery and chemotherapy, although the tumors are harder to treat if they have spread outside the liver.