Assertion: grade's use | /r/HasProperty | g
Facets:
Source sentences:
text: There are a few variations to this system, including the use of an O (for "outstanding") grade, which is even higher than the E; the use of an O instead of the E; a G (for "good") placed between the E and the S; the use of a G (again for "good") instead of the E; and the lack of a U grade.