Assertion: rugby ball's shape | /r/CapableOf | change to egg
Facets:
value: from a sphere
type: OTHER
value: gradually
type: MANNER
Source sentences:
text: In 1870, Richard Lindon introduced rubber inner-tubes and because of the pliability of rubber, the shape gradually changed from a sphere to an egg.
text: Because of the pliability of rubber the shape gradually changed from a sphere to an egg.