Assertion: tv | /r/CapableOf | tune its rate
Facets:
value: in order to avoid interference
type: PURPOSE
Source sentences:
text: Television, using power from the electrical grid, tunes its rate in order to avoid interference with the alternating current being supplied – in North America, some Central and South American countries, Taiwan, Korea, part of Japan, the Philippines, and a few other countries, this is 60 video fields per second to match the 60 Hz power, while in most other countries it is 50 fields per second to match the 50 Hz power.