Assertion: black mamba's venom | /r/CapableOf | take effect
Facets:
Source sentences:
text: Venom is produced by a modified salivary gland and digestive enzymes in the saliva help soften the meal while the venom takes effect.
text: After biting its prey, the snake waits for the venom to take effect, although birds are generally not released after being caught.
text: If the prey is a bird, it will usually hang on to the bird waiting for the venom to take effect.
text: The western green feeds largely on birds and small mammals and pursue their prey with rapid strikes until the venom takes effect.