Assertion: disc's groove | /r/HasProperty | massive improvement
Facets:
Source sentences:
text: These records consisted of mixture of vinyl chloride and vinyl acetate, known as Vinylite, which was harder and finer than shellac, and allowed the discs to be cut with 224 to 226 grooves per inch, which was a massive improvement over the former 80 to 100 grooves per inch.