Seive sense
It was explained, implausibly, narratorially, naturaly, gnat, that, "seive" was used in the sense of "Non-existent village in Wales where they manufacture bowlingballs and squid". It was then admitted that I couldn't spell "sieve", either.
The characters backed away. "It's one of those sentences!" said Arthur. "If it's not spelled 'sieve', it could be almost anything. Except a non-existent village in Wales whose entire population is puce. And a circular kitchen implement with holes in it — like outer space."
Turning from his observations of the black marmaladey inside of outer space, Antiplautus noticed the non-sieve. It was very large. "I'm maaad!" it ninged.