Assertion: rubber | /r/CapableOf | become soft
Facets:
value: in brittle
type: OTHER
value: in summer
type: TEMPORAL
value: in winter
type: TEMPORAL
value: in hard
type: OTHER
Source sentences:
text: He seemed on the high road to success, until one day he noticed that a drop of weak acid, falling on the cloth, neutralized the alkali and immediately caused the rubber to become soft again.
text: Because there are few (if any) cross-links in the chains of rubber molecules, natural rubber is thermoplastic; that is, it becomes soft and sticky in summer and hard and brittle in winter.