Complex sentence: Batman tells Jordan that Robin is not Grayson, but in fact a boy he met six years ago on a trip to Istanbul but retracts the lie and merely assures Jordan that Grayson is not Robin.
Split into simpler sentences: Batman tells Jordan that Robin is not Grayson, but in fact a boy he met six years ago on a trip to Istanbul. He eventually retracts the lie and merely assures Jordan that Grayson is not Robin.