Given the sentence "A farmer in a blue jacket and boots is gathering stacks of hay into bundles." is it true that "A farmer is preparing to sell hay."?
Let’s work this out in a step by step way to be sure we have the right answer.
it is not possible to tell
Although the farmer is gathering stacks of hay there is nothing to suggest he is preparing to sell that hay.

.

So, the answer is it is not possible to tell