Poem about wise and intelligent consumer

Since the question asks about the poem, here is the answer;

Wise and intelligent consumer...

Wise men says,

What you bought is what you pay.

Not all labels that you read,

Will provide you what you need.

Wise men says,

To be thrifty that is one of the ways.

Be sure to pick out the best option,

Not to regret the made decision.

Wise men says,

Products and prizes never stays.

It costs low as old and expensive as gold,

Its value depends on its worth to be sold.

do you have more to the question?

- "the basic difference between keywords and subjects is that subjects (or "subject headings") have been predetermined, while keywords have not. a keyword is an easy place to start because you can use any word that seems to fit your search; this is called "natural language" searching."