Assertion: brain tumor | /r/HasProperty | graded on a scale of 1 to 4
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Brain tumors are graded on a scale of 1 to 4, based on how malignant, or cancerous, they are –
text: Brain tumours are usually graded on a scale of 1 to 4, based on how quickly they are growing and their ability to invade nearby tissue: grades 1 and 2 are the slowest growing and are called low-grade tumours; grade 4 is the fastest growing.