You are given a sentence and your task is to generate another sentence that supports the given input.

[Q]: The body's immune system has many mechanisms to defend against unwanted foreign substances (viruses, bacteria, cancer cells, etc.), including antibodies that recognize and destroy the substances.
[A]: The immune system typically recognizes, attacks, and destroys foreign cells or substances that may cause disease.


[Q]: Features of pollen grains used in identification are size, shape, thickness of the exine (outer wall) and intine (inner wall) of the pollen grain.
[A]: Each pollen grain has two coverings: the exine (thicker, outer layer) and the intine.


[Q]: A triple bond consists of three shared electron pairs, forming one sigma and two pi bonds.
[A]:
In a carbon triple bond, three pairs of electrons are shared.


