Task: Instance Class Understanding (ontology: Sciences/Computer_Science)

Which of the following classes does 'G1 (Fuhrman)' belong to as one valid explicit type? Context: A histologic grade according to the Fuhrman Nuclear Grading System indicating that nuclei are round, uniform, approximately 10um and that nucleoli are inconspicuous or absent.

A. histologic grade according to the Fuhrman Nuclear Grading System
B. pathologic primary tumor stage for kidney according to AJCC 7th edition
C. pathologic distant metastases stage for colon according to AJCC 7th edition
D. International Federation of Gynecology and Obstetrics ovarian cancer stage value specification

Answer: histologic grade according to the Fuhrman Nuclear Grading System