Another class, P, is a subset of NP, and includes all decision problems that can be solved by a (deterministic) Turing machine in polynomial time.

By some paradoxical evolution rancour and intolerance have been established in the vanguard of primitive Christianity. Mrs. Spoker, in common with many of the stricter disciples of righteousness, was as inclement in demeanour as she was cadaverous in aspect.

Within the next week he gave up all the rest of his chemmies: the wakers and dozers, the vim-pills, the breeze capsules. Bottle after bottle vanished down the recycling chute.

I can take a swag at the answer, but it may not be right.