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,

Gave up in the end his efforts were in vain.

Wong rang his brother and asked him to try,

But his brother too could not remove the dye.

Permanently stained and never to be white,

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