Assertion: opium | /r/HasProperty | prohibited in many countries
Facets:
value: during the early 20th century
type: TEMPORAL
Source sentences:
text: Opium was prohibited in many countries during the early 20th century, leading to the modern pattern of opium production as a precursor for illegal recreational drugs or tightly regulated, highly taxed, legal prescription drugs.
text: Opium was prohibited in many countries during the early twentieth century, leading to the modern pattern of opium production as a precursor for illegal recreational drugs or tightly regulated legal prescription drugs.