answer: #Person1# and #Person2# are discussing the possible cause of their illness. They finally find out it's the unwashed pears.
documents: #Person1#: Maybe it was the fish or meat we ate.
  #Person2#: Yes, it might have been.
  #Person1#: Or the soup.
  #Person2#: No, it couldn't have been the soup because I didn't have any.
  #Person1#: Of course. We sat in the sun for a long time. I suppose it could have been the sun.
  #Person2#: Yes, it might have been. But we've got used to sitting in the sun.
  #Person1#: That's true. Now what else did we both eat? Only those lovely pears I bought. It couldn't have been them. We're used to eating pears and you washed them.
  #Person2#: No, I didn't. I thought you had.
  #Person1#: I didn't wash them. I was sure you did. It must have been the pears then.