Assertion: world rugby | /r/Synonym | law e.r.b
Facets:
Source sentences:
text: In rugby union, World Rugby regulates the size and shape of the ball under Law 2 (also known as Law E.R.B); an official rugby union ball is oval and made of four panels, has a length in-line of 280–300 millimetres, a circumference (end to end) of 740–770 millimetres, and a circumference (in width) of 580–620 millimetres.