Assertion: contraceptive's use | /r/CapableOf | contribute to a 50 percent drop
Facets:
value: in urban regions
type: LOCATION
value: between 1900
type: TEMPORAL
value: between 1800
type: TEMPORAL
Source sentences:
text: Use of contraceptives increased throughout the nineteenth century, contributing to a 50 percent drop in the fertility rate in the United States between 1800 and 1900, particularly in urban regions.
text: Use of contraceptives increased throughout the nineteenth century, contributing to a 50 percent drop in the fertility rate in the United States between 1800 and 1900, particularly in urban regions.