here https://developers.facebook.com/policy/ .
sell your data, however if we are acquired or are merged we may transfer this
data. In addition, you may request the removal of your data at any time by
contacting us via email but we ask that you give us a reasonable amount of time
to fulfill this request once it is made.
By using our Application and/or Page you agree that you are granting us the
right to use, copy, display, distribute, deliver, render, and publicy perform any
content that you provide to us. The use of our Application and/or Page is also
prohibited in certain countries, specifically ones that have blocked the use of
Facebook or where your use or our content would be prohibited.