Assertion: seawater's salt | /r/HasProperty | best-known food preservative
Facets:
value: for meat
type: TRANSITIVE-OBJECT
value: for many thousands of years
type: TEMPORAL
Source sentences:
text: While people have used canning and artificial refrigeration to preserve food for the last hundred years or so, salt has been the best-known food preservative, especially for meat, for many thousands of years.