Fred had a stain on his new white sweater.

"Wong's laundry," for removing stains,there was no-one better.

Wong tried his best to remove the stain ,

But gave up in the end ,his efforts were in vain.

Wong called his brother asked him to try.

But his brother too could not remove the dye.

Permanently stained and never to be white,

The moral,"Two Wongs will never make a white."