The Uncertainty of the Poet, by Wendy Cope

 I am a poet.
 I am very fond of bananas.

 I am bananas.
 I am very fond of a poet.

 I am a poet of bananas.
 I am very fond.

 A fond poet of 'I am, I am'-
 Very bananas.

 Fond of 'Am I bananas?
 Am I?'-a very poet.

 Bananas of a poet!
 Am I fond? Am I very?

 Poet bananas! I am.
 I am fond of a 'very.'

 I am of very fond bananas.
 Am I a poet?