Assertion: clock's pendulum | /r/CapableOf | replace foliot
Facets:
Source sentences:
text: At that time it had a pendulum, which appeared to have been installed at a later date, replacing a verge and foliot.
text: By the mid-17th century, when the pendulum replaced the foliot, the best verge and foliot clocks had achieved an accuracy of 15 minutes per day.