Assertion: cane | /r/HasProperty | promoted for use
Facets:
value: as a symbol
type: PURPOSE
value: by the blind
type: OTHER
Source sentences:
text: For centuries, the "cane" was used merely as a tool for travel and it was not until the twentieth century that the cane, as we know it today, was promoted for use by the blind as a symbol to alert others to the fact that an individual was blind.