Assertion: student | /r/HasAspect | more than 200 books
Facets:
value: compared with students
type: OTHER
value: at home
type: LOCATION
Source sentences:
text: Students scored 54 points better in math and 57 in science (on a range with an international average of 500 and an international standard deviation of 100) when they had more than 200 books at home compared with students who had fewer than 10.