Assertion: nylon dental floss | /r/HasProperty | developed in response
Facets:
value: to rising silk costs
type: CAUSE
value: during world war ii
type: TEMPORAL
Source sentences:
text: However, the first dental floss patent was awarded to Johnson & Johnson in 1898, and today's nylon dental floss was developed during World War II in response to rising silk costs (Spear Education).