Assertion: dark matter | /r/CapableOf | come in seven grades
Facets:
Source sentences:
text: It comes in seven grades, which can be used to repair equipment whose level falls within a certain range (Grade 1: level 1–10; Grade 2: level 11–20; Grade 3: level 21–30; Grade 4: level 31–40; Grade 5: 41–50; Grade 6: 51–60, Grade 7: 61-70).