In Xanadu, xenophobia was common.
Xerxes, being at the zenith,
thought Xanadu needed xenon
to cure the xanthine zealously.
Well, Xanadu became a zoo.
They became more zealously xenophobic.
Puzzled, Xerxes thought it must be
a lack of xylem. So,
zoom there you go. Xanadu
grew with zest to a zenith of
xylophone playing xenophobes.