Assertion: hertz | /r/HasProperty | the unit
Facets:
Source sentences:
text: Hertz is the unit used to measure frequency.
text: A hertz is a unit used to measure frequency.
text: Decibel and hertz are two units used in sound and wave mechanics.
text: The hertz (seembol Hz) is the unit o frequency in the Internaitional Seestem
text: Hertz is the unit used to measure frequency.