Assertion: writing | /r/HasProperty | done
Facets:
Source sentences:
text: This means that if all of the students need to sharpen their pencils once a day (depending on how much writing is being done, a pencil may need sharpened more than once a day), it could take an average of 30 minutes to sharpen them all before the students can sit down to their desks and start learning the day's lessons.