Assertion: shaver's foil | /r/HasProperty | replaced
Facets:
value: every year or so
type: TEMPORAL
value: least once a year
type: TEMPORAL
Source sentences:
text: Over time, the foil and blades in the electric shaver will wear out and so should be replaced at least once a year.
text: Depending on how often you shave and the coarseness of your beard, the blades and foils must be replaced every year or so.