Assertion: crown | /r/AtLocation | place
Facets:
value: for a long time
type: TEMPORAL
Source sentences:
text: A crown that has been in place for a long time may eventually cause the gums to recede.
text: This is often a problem with crowns that have been in place for a long time; if they are even slightly ill-fitted, they may not cause pain at first but can impinge the gingival tissue, causing it to recede.