Assertion: hearing aid | /r/CapableOf | amplify sound waves
Facets:
value: to help
type: PURPOSE
Source sentences:
text: A hearing aid is a device that can amplify sound waves in order to help a deaf or hard-of-hearing person hear sounds more clearly.
text: Hearing aids are devices that can amplify sound waves to help a deaf or hard-of-hearing person hear sounds more clearly.