Assertion: african clawed frog | /r/CapableOf | become in 1940
Facets:
Source sentences:
text: In the 1940s the African Clawed Frog became the world's first pregnancy test for Humans, which although barbaric, has led to them being found worldwide today.
text: In the 1940s the African Clawed Frog became the world's first pregnancy test for Humans, which although barbaric, has led to them being found worldwide today.