Using Context Free Grammar to Generate sentences!

the pickle in every sandwich knew that an umbrella jumped extremely in Mary .

an observer assumed that an umbrella under an observer understood an observer .

did Eva eat an observer ?

that Mary worked lovely on an umbrella understood an umbrella under Eva under Adam in every president .

a president wanted every desk !

will Adam eat Jason ?

Jason and a desk engaged and disliked an umbrella .

does Eva want an observer on every perplexed desk ?

an observer ate a sandwich !

is it true that Eva in every floor with an umbrella with an umbrella in Mary understood an umbrella ?