Assertion: tennis ball | /r/HasAspect | right amount of bounce
Facets:
Source sentences:
text: Since 1925, the IFT has used a very simple system to ensure that tennis balls have just the right amount of bounce: “The test involves dropping a ball vertically from a height of 254 cm (100 inches) and measuring the rebound, which should be 135-147 cm (53-58 inches).