Text: On 6 August 1945, a B29 (the Enola Gay) dropped an atomic bomb on the city of Hiroshima, inflicting a level of destruction that astonished even the bomb's designers.
Entailment: The people who designed the atomic bomb were astonished by its destructive power.
Contradiction: After the bombing of Hiroshima, the designers of the atomic bomb were disappointed by how little destruction it caused.