Fifteen cups & a poem

In this poem are there 15 cups
If less you find ,
Someone has picked
If more you find
Well
You’ve been tricked

If you none find
There are no cups then

Should all the cups have been taken
At the end of this poem

All the poems should be broken
If the cups are still here

All that matters are 15 cups
That’s all that’s here
In this poem

Bose