Assertion: water lily's root | /r/HasProperty | protected
Facets:
value: from heavy rains
type: OTHER
Source sentences:
text: In these zones, they are perennial, so long as their roots are protected from freezing by being low enough under the water that they don’t get surrounded by ice.
text: They should not be disturbed in the autumn, and after the leaves have withered the roots should be protected from heavy rains until growth starts again naturally.