Assertion: urea's effect | /r/HasProperty | reversible
Facets:
value: sometimes
type: DEGREE
Source sentences:
text: Sometimes these effects are reversible, which means that the column can be brought to original conditions after thorough cleaning.
text: You may try to clean your column according to the manuafcturer's recommendations and see if the effects you experienced with urea are reversible, otherwise, you will need to get a new column.